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KR-102963885-B1 - A method for extraction and analysis of radionuclides Cesium (Cs), Strontium (Sr), and Plutonium (Pu) from large-volume liquid environmental samples, apparatus therefor, and method for controlling the apparatus

KR102963885B1KR 102963885 B1KR102963885 B1KR 102963885B1KR-102963885-B1

Abstract

The present invention relates to a method for extracting and analyzing radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environmental sample, an apparatus thereof, and a method for controlling the apparatus thereof. The purpose thereof is to enable rapid, safe, and accurate analysis of the collected eluent using an analyzer by fractionally collecting an eluent containing cesium (Cs), strontium (Sr), and plutonium (Pu) contained in a large volume liquid environmental sample collected using an ionic liquid, using resin-filled and equilibrated resin column tubes, and by fractionally collecting the eluent containing the concentrated cesium (Cs), strontium (Sr), and plutonium (Pu). The composition comprises: a liquid environmental sample filling step of filling a large volume reaction tank with a collected liquid environmental sample (LES) up to a preset level; and a pH adjustment step of adding nitric acid to the liquid environmental sample (LES) so that the liquid environmental sample (LES) in the large volume reaction tank is adjusted to a preset pH. A separation agent injection step of injecting a separation agent into a pH-adjusted liquid environment sample (LES); a liquid environment sample stirring step of stirring the liquid environment sample (LES) in the reaction tank at a preset speed for a preset time once the separation agent injection step is completed; an AMP-PAN resin filling and equilibration step of filling an AMP-PAN resin column tube with AMP-PAN resin so as not to form bubbles in the resin bed, and then flowing an equilibration solution having the same pH as the sample into the AMP-PAN resin column tube so that the pH of the ion exchange site of the filled AMP-PAN resin is adjusted to be the same as the pH of the sample to be loaded; and a liquid environment sample loading step for cesium extraction of flowing the liquid environment sample (LES) in the reaction tank into the AMP-PAN resin column tube at a preset flow rate once the AMP-PAN resin filling and equilibration step is completed; If the above liquid environment sample loading step is completed, an AMP-PAN resin column tube washing step in which a washing solution (or equilibration solution) is flowed into the AMP-PAN resin column tube to remove unadsorbed residual matrix components and weakly bound interfering ions remaining in the column; if the above AMP-PAN resin column tube washing step is completed, a cesium fraction collection step in which an eluent solution is injected into the AMP-PAN resin column tube to separate and recover cesium ions (Cs + ) strongly adsorbed on the AMP-PAN resin from the column, and a certain amount of the eluent containing concentrated cesium discharged from the AMP-PAN resin column tube is collected in a vial; and if the above cesium fraction collection step is completed, a cesium elution step in which a preset amount of regenerating agent solution is flowed into the AMP-PAN resin column tube at a preset flow rate; If the above cesium elution step is completed, an AMP-PAN resin column regenerating agent washing step in which an amount of washing solution equal to the volume of the resin (ultrapure water or a diluted acidic solution (0.1M HNO₃ , having the same pH as the AMP-PAN resin)) is flowed into the AMP-PAN resin column tube; a TEVA resin filling and equilibration step in which TEVA resin is filled into the TEVA (TEtraValent Actinides) resin column tube to prevent air bubbles from forming in the resin bed, and then an equilibration solution having the same pH as the sample is flowed into the TEVA resin column tube to match the pH of the sample to be loaded at the ion exchange site of the filled TEVA resin; and a plutonium extraction liquid in which, if the above TEVA resin filling and equilibration step is completed, a liquid environment sample from the reaction tank is flowed into the TEVA resin column tube at a preset flow rate. An environmental sample loading step; a TEVA resin column tube washing step in which, if the liquid environmental sample loading step for plutonium extraction is completed, a washing solution (equilibration solution) is flowed into the TEVA resin column tube to remove unadsorbed residual matrix components and weakly bound interfering ions remaining in the column; a plutonium fraction collection step in which, if the TEVA resin column tube washing step is completed, an elution solution is injected into the TEVA resin column tube to separate and recover plutonium ions ( Pu⁴⁺ ) strongly adsorbed to the TEVA resin from the column, and a certain amount of the elution containing concentrated plutonium discharged from the TEVA resin column tube is collected in a vial; a plutonium elution step in which, if the plutonium fraction collection step is completed, a preset amount of a regenerating agent solution is flowed into the TEVA resin column tube at a preset flow rate; and the plutonium elution step If completed, a TEVA resin column regenerating agent washing step of flowing a washing solution equal in volume to the resin into a TEVA resin column tube; a TK-102 resin filling and equilibration step of filling a TK-102 (trademark of TrisKem International) resin column tube (TK-102 resin column tube) with TK-102 resin so as not to form air bubbles in the resin bed, and then flowing an equilibration solution having the same pH as the sample into the TK-102 resin column tube so that the pH of the ion exchange site of the filled TK-102 resin is matched to that of the sample to be loaded; a liquid environment sample loading step for strontium extraction of flowing a liquid environment sample from a reaction tank into the TK-102 resin column tube at a preset flow rate if the above TK-102 resin filling and equilibration step is completed; and the above liquid environment sample loading step for strontium extraction If completed, a TK-102 resin column tube washing step of flowing a washing solution (equilibration solution) into the TK-102 resin column tube to remove unadsorbed residual matrix components and weakly bound interfering ions remaining in the column; if the TK-102 resin column tube washing step is completed, a strontium fraction collection step of injecting deionized water into the TK-102 resin column tube to separate and recover strontium ions ( Sr²⁺ ) strongly adsorbed on the TK-102 resin from the column, and collecting a certain amount of deionized water containing concentrated strontium discharged from the TK-102 resin column tube into a vial; if the strontium fraction collection step is completed, a TK-102 resin column tube exchange step of exchanging the TK-102 resin column tube; and radiological analysis of cesium in a liquid environment sample using an HPGe analyzer on the cesium vial collected in the cesium fraction collection step. It is characterized by comprising: a cesium analysis step; a plutonium analysis step in which a plutonium vial collected in the plutonium fraction collection step is subjected to radiological analysis for plutonium in a liquid environment sample using an LSC or alpha analyzer; and a strontium analysis step in which a strontium vial collected in the strontium fraction collection step is subjected to radiological analysis for strontium in a liquid environment sample using an LSC analyzer.

Inventors

  • 이홍연
  • 한상준
  • 김보길
  • 김병우

Assignees

  • 주식회사 알엠택

Dates

Publication Date
20260512
Application Date
20251020

Claims (8)

  1. A method for extracting and analyzing radionuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environment sample, The above method is, A liquid environmental sample filling step (S100) for filling a large-capacity reaction tank with a collected liquid environmental sample (LES) up to a preset level; A pH adjustment step (S200) for adding nitric acid to the liquid environment sample (LES) so that the liquid environment sample (LES) in the large-capacity reaction tank is adjusted to a preset pH; A separation agent injection step (S300) for injecting a separation agent into a pH-adjusted liquid environment sample (LES); If the above separation agent injection step (S300) is completed, a liquid environment sample stirring step (S400) in which the liquid environment sample (LES) in the reaction tank is stirred at a preset speed for a preset time; An AMP-PAN resin filling and equilibration step (S500) in which AMP-PAN resin is filled into an AMP-PAN resin column tube so as not to form air bubbles in the resin bed, and then an equilibration solution having the same pH as the sample is flowed into the AMP-PAN resin column tube so that the pH of the ion exchange site of the filled AMP-PAN resin is adjusted to be the same as the pH of the sample to be loaded; If the above AMP-PAN resin filling and equilibration step (S500) is completed, a liquid environment sample loading step (S600) for cesium extraction in which the liquid environment sample (LES) in the reaction tank is flowed into the AMP-PAN resin column tube at a preset flow rate; If the above liquid environment sample loading step (S600) is completed, an AMP-PAN resin column tube washing step (S700) in which a washing solution (or equilibration solution) is flowed into the AMP-PAN resin column tube to remove unadsorbed residual matrix components and weakly bound interfering ions remaining in the column; If the above AMP-PAN resin column tube washing step (S700) is completed, a cesium fraction collection step (S800) is performed in which an eluent solution is injected into the AMP-PAN resin column tube to separate and recover cesium ions (Cs + ) strongly adsorbed on the AMP-PAN resin from the column, and a certain amount of the eluent containing concentrated cesium discharged from the AMP-PAN resin column tube is collected in a vial; If the above cesium fraction collection step (S800) is completed, a cesium elution step (S900) in which a preset amount of regenerating agent solution is flowed into the AMP-PAN resin column tube at a preset flow rate; If the above cesium elution step (S900) is completed, an AMP-PAN resin column regenerating agent washing step (S1000) in which an amount of washing solution equal to the volume of the resin (ultrapure water or a diluted acid solution (0.1M HNO₃ , having the same pH as the pH of the AMP-PAN resin)) is flowed into the AMP-PAN resin column tube; A TEVA resin filling and equilibration step (S1100) in which TEVA resin is filled into a TEVA (TEtraValent Actinides) resin column tube so as not to form air bubbles in the resin bed, and then an equilibration solution having the same pH as the sample is flowed into the TEVA resin column tube so as to match the pH of the sample to be loaded into the ion exchange site of the filled TEVA resin; If the above TEVA resin filling and equilibration step (S1100) is completed, a liquid environment sample loading step (S1200) for plutonium extraction in which the liquid environment sample in the reaction tank is flowed into the TEVA resin column tube at a preset flow rate; If the above-mentioned plutonium extraction liquid environment sample loading step (S1200) is completed, a TEVA resin column tube washing step (S1300) in which a washing solution (equilibration solution) is flowed into the TEVA resin column tube to remove unadsorbed residual matrix components and weakly bound interfering ions remaining in the column; If the above TEVA resin column tube washing step (S1300) is completed, a plutonium fraction collection step (S1400) is performed in which an eluent solution is injected into the TEVA resin column tube to separate and recover plutonium ions ( Pu⁴⁺ ) strongly adsorbed on the TEVA resin from the column, and a certain amount of the eluent containing concentrated plutonium discharged from the TEVA resin column tube is collected in a vial; If the above plutonium fraction collection step (S1400) is completed, a plutonium elution step (S1500) in which a preset amount of regenerator solution is flowed into a TEVA resin column tube at a preset flow rate; If the above plutonium elution step (S1500) is completed, a TEVA resin column regenerating agent washing step (S1600) in which an amount of washing solution equal to the volume of the resin is flowed into the TEVA resin column tube; A TK-102 resin filling and equilibration step (S1700) in which TK-102 resin is filled into a TK-102 (trade name of TrisKem International) resin column tube (TK-102 resin column tube) so as not to form air bubbles in the resin bed, and then an equilibration solution having the same pH as the sample is flowed into the TK-102 resin column tube so that the pH of the ion exchange site of the filled TK-102 resin is adjusted to the same pH as the sample to be loaded; If the above TK-102 resin filling and equilibration step (S1700) is completed, a liquid environment sample loading step (S1800) for strontium extraction in which the liquid environment sample in the reaction tank is flowed into the TK-102 resin column tube at a preset flow rate; If the above-mentioned liquid environment sample loading step (S1800) for strontium extraction is completed, a TK-102 resin column tube washing step (S1900) in which a washing solution (equilibration solution) is flowed into the TK-102 resin column tube to remove unadsorbed residual matrix components and weakly bound interfering ions remaining in the column; If the above TK-102 resin column tube washing step (S1900) is completed, a strontium fraction collection step (S2000) injecting deionized water into the TK-102 resin column tube to separate and recover strontium ions ( Sr²⁺ ) strongly adsorbed on the TK-102 resin from the column, and collecting a certain amount of deionized water containing concentrated strontium discharged from the TK-102 resin column tube into a vial; If the above strontium fraction collection step (S2000) is completed, a TK-102 resin column tube exchange step (S2100) for exchanging the TK-102 resin column tube; A cesium analysis step (S2200) in which a cesium vial collected in the above cesium fraction collection step (S800) is subjected to radiological analysis for cesium in a liquid environment sample using an HPGe analyzer; A plutonium analysis step (S2300) for performing radiological analysis of plutonium in a liquid environment sample using an LSC or an alpha analyzer on the plutonium vial collected in the plutonium fraction collection step (S1400); A method for extracting and analyzing radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environment sample, characterized by comprising a strontium analysis step (S2400) in which a strontium vial collected in the above strontium fraction collection step (S2000) is subjected to radiological analysis for strontium in the liquid environment sample using an LSC analyzer.
  2. In paragraph 1, The eluent solution of the above cesium fraction collection step (S800) is, It is a 1M NaOH solution; The regenerating agent solution of the above cesium elution step (S900) is, 5M ammonium chloride ( NH₄Cl ) solution or 5M ammonium nitrate ( NH₄NO₃ )); The preset amount of the regenerator solution is, The amount is 10 to 30 times the resin bed volume of the AMP-PAN resin; The flow rate of the regenerating agent solution is, A method for extracting and analyzing radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environment sample, characterized by a flow rate of 50% of the average flow rate.
  3. In paragraph 1, The elution solution of the above plutonium fraction collection step (S1400) is, It is an HF/HCl mixed solution; The regenerator solution of the above plutonium elution step (S1500) is, It is low concentration HNO₃ or high concentration HCl, and The preset amount of the regenerator solution is, The amount is 10 to 30 times the bed volume of the TEVA resin; The flow rate of the regenerating agent solution is, A method for extracting and analyzing radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environment sample, characterized by a flow rate of 50% of the average flow rate.
  4. In paragraph 1, The preset pH in the above pH adjustment step (S200) is, A method for extracting and analyzing radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environment sample, characterized by a pH of 1 to 2.
  5. In paragraph 1, The separator in the above separator input step (S300) is, A method for extracting and analyzing radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environment sample, characterized by being a strontium carrier (Sr carrier) and a plutonium tracer (Pu tracer).
  6. In paragraph 1, The washing solution of the above TEVA resin column regenerating agent washing step (S1600) is, A method for extracting and analyzing radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environmental sample, characterized by being ultrapure water or a diluted acid solution (0.1M HNO₃ , having the same pH as the pH of TEVA resin).
  7. A liquid environmental sample filling step (S100) for filling a large-capacity reaction tank with a collected environmental sample up to a preset level; a pH adjustment step (S200) for adding nitric acid to the liquid environmental sample so that the liquid environmental sample in the reaction tank is adjusted to a preset pH; a separation agent addition step (S300) for adding a separation agent to the pH-adjusted liquid environmental sample; and, if the separation agent addition step (S300) is completed, a liquid environmental sample stirring step (S400) for stirring the liquid environmental sample in the reaction tank at a preset speed for a preset time; An AMP-PAN resin filling and equilibration step (S500) in which AMP-PAN resin is filled into an AMP-PAN resin column tube so as not to form bubbles in the resin bed, and an equilibration solution having the same pH as the sample is flowed into the AMP-PAN resin column tube so that the pH of the ion exchange site of the filled AMP-PAN resin is adjusted to be the same as the pH of the sample to be loaded; and a liquid environment sample loading step (S600) for cesium extraction in which, if the AMP-PAN resin filling and equilibration step (S500) is completed, a liquid environment sample from a reaction tank is flowed into the AMP-PAN resin column tube at a preset flow rate; If the above liquid environment sample loading step (S600) is completed, an AMP-PAN resin column tube washing step (S700) in which a washing solution (equilibration solution) is flowed into the AMP-PAN resin column tube to remove unadsorbed residual matrix components and weakly bound interfering ions remaining in the column; and if the above AMP-PAN resin column tube washing step (S700) is completed, a cesium fraction collection step (S800) in which an eluent solution is injected into the AMP-PAN resin column tube to separate and recover cesium ions (Cs + ) strongly adsorbed on the AMP-PAN resin from the column, and a certain amount of the eluent containing concentrated cesium discharged from the AMP-PAN resin column tube is collected in a vial; If the above cesium fraction collection step (S800) is completed, a cesium elution step (S900) in which a preset amount of regenerating agent solution is flowed into the AMP-PAN resin column tube at a preset flow rate; If the above cesium elution step (S900) is completed, an AMP-PAN resin column regenerating agent washing step (S1000) in which an amount of washing solution (ultrapure water or diluted acid solution) equal to the volume of the resin is flowed into the AMP-PAN resin column tube; a TEVA resin filling and equilibration step (S1100) in which TEVA resin is filled into the TEVA (TEtraValent Actinides) resin column tube so as not to form air bubbles in the resin bed, and then an equilibration solution having the same pH as the sample is flowed into the TEVA resin column tube so that the pH of the sample to be loaded into the ion exchange site of the filled TEVA resin is matched; and if the above TEVA resin filling and equilibration step (S1100) is completed, a liquid environment sample from the reaction tank is flowed into the TEVA resin column tube at a preset flow rate for plutonium extraction A liquid environment sample loading step (S1200); a TEVA resin column tube washing step (S1300) in which, if the liquid environment sample loading step (S1200) for plutonium extraction is completed, a washing solution (equilibration solution) is flowed into the TEVA resin column tube to remove unadsorbed residual matrix components and weakly bound interfering ions remaining in the column; a plutonium fraction collection step (S1400) in which, if the TEVA resin column tube washing step (S1300) is completed, an eluent solution is injected into the TEVA resin column tube to separate and recover plutonium ions ( Pu⁴⁺ ) strongly adsorbed to the TEVA resin from the column, and a certain amount of the eluent containing concentrated plutonium discharged from the TEVA resin column tube is collected in a vial; and if the plutonium fraction collection step (S1400) is completed, a regenerating agent solution is injected into the TEVA resin column tube according to a preset A plutonium elution step (S1500) in which a volume is flowed at a preset flow rate; and a TEVA resin column regenerating agent washing step (S1600) in which, if the plutonium elution step (S1500) is completed, an amount of washing solution (ultrapure water or a diluted acid solution (0.1M HNO₃ , having the same pH as the TEVA resin) equal to the volume of the resin is flowed into the TEVA resin column tube; and after filling the TK-102 (trademark of TrisKem International) resin column tube with TK-102 resin so as not to form air bubbles in the resin bed, an equilibration solution having the same pH as the sample is flowed into the TK-102 resin column tube so as to match the pH of the sample to be loaded at the ion exchange site of the filled TK-102 resin. A TK-102 resin filling and equilibration step (S1700); a strontium extraction liquid environment sample loading step (S1800) in which, if the TK-102 resin filling and equilibration step (S1700) is completed, a liquid environment sample from a reaction tank is flowed into the TK-102 resin column tube at a preset flow rate; a strontium extraction liquid environment sample loading step (S1800) in which, if the strontium extraction liquid environment sample loading step (S1800) is completed, a washing solution (equilibration solution) is flowed into the TK-102 resin column tube to remove unadsorbed residual matrix components and weakly bound interfering ions remaining in the column; and if the TK-102 resin column tube washing step (S1900) is completed, strontium ions ( Sr²⁺ ) strongly adsorbed on the TK-102 resin are separated from the column and A strontium fraction collection step (S2000) for injecting deionized water into a TK-102 resin column tube for recovery and collecting a certain amount of deionized water containing concentrated strontium discharged from the TK-102 resin column tube into a vial; a TK-102 resin column tube exchange step (S2100) for exchanging the TK-102 resin column tube if the strontium fraction collection step (S2000) is completed; a cesium analysis step (S2200) for performing radiological analysis for cesium in a liquid environment sample using an HPGe analyzer on the cesium vial collected in the cesium fraction collection step (S800); a plutonium analysis step (S2300) for performing radiological analysis for plutonium in a liquid environment sample using an LSC or alpha analyzer on the plutonium vial collected in the plutonium fraction collection step (S1400); and the An apparatus for extracting and analyzing radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) in a large volume liquid environment sample, comprising a strontium analysis step (S2400) in which a strontium vial collected in a strontium fraction collection step (S2000) is subjected to radiological analysis for strontium in the liquid environment sample using an LSC analyzer, wherein The above device is, A liquid environmental sample reaction tank (20) having a hollow interior and pre-treating a liquid environmental sample (LES) collected inside, comprising a liquid environmental sample supply port (21) for supplying a liquid environmental sample on one side of the bottom, a waste liquid environmental sample discharge port (22) for discharging a waste liquid environmental sample (WLES) on the other side of the bottom, a liquid environmental sample inlet port (23) for introducing a collected liquid environmental sample into the interior on one side of the top, a nitric acid inlet port (24) for introducing nitric acid on the top surface, and a separator inlet port (25) for introducing a separator on the top surface; A stirring device (30) embedded in the above liquid environment sample reaction tank (20) and stirring the liquid environment sample; A pH sensing means (40) embedded in the above liquid environmental sample reaction tank (20), which detects the pH of the liquid environmental sample (LES) and transmits the pH sensing signal; A level detection means (50) embedded in the above liquid environment sample reaction tank (20), detecting the level of the liquid environment sample (LES) and transmitting the level detection signal; An AMP-PAN resin column tube (60) having first and second A inlets (61)(62) at the top and first and second A outlets (63)(64) at the bottom, wherein the first A inlet (61) is connected in parallel to the liquid environment sample supply port (21) of the liquid environment sample reaction tank (20) through a first connecting pipe (P1); A TEVA resin column tube (70) having a first B and second B inlet (71)(72) at the top and a first B and second B outlet (73)(74) at the bottom, wherein the first B inlet (71) is connected in parallel to the liquid environment sample supply port (21) of the liquid environment sample reaction tank (20) through a first connecting pipe (P1); A TK-102 resin column tube (80) having a first C and second C inlet (81)(82) at the top and a first C and second C outlet (83)(84) at the bottom, wherein the first C inlet (81) is connected in parallel to the liquid environment sample supply port (21) of the liquid environment sample reaction tank (20) through a first connecting pipe (P1); A tank having a discharge inlet (91) connected in communication with a second connecting pipe (P2), and a discharge storage tank (90) that is connected in parallel to the first A discharge port (63) of the AMP-PAN resin column tube (60), the first B discharge port (73) of the TEVA resin column tube (70), and the first C discharge port (83) of the TK-102 resin column tube (80), respectively through the second connecting pipe (P2), and stores the discharge (E) discharged through the first A discharge port (63), the first B discharge port (73), and the first C discharge port (83); A tank having a liquid environment sample inlet (101) connected in communication with the liquid environment sample outlet (22) of the liquid environment sample reaction tank (20), and a waste liquid environment sample storage tank (100) that stores a waste liquid environment sample (WLES) discharged through the liquid environment sample outlet (22) inside; A tank having a equilibration solution supply port (111) connected in communication with a first connecting pipe (P1), and an equilibration solution tank (110) that supplies an equilibration solution into the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80) through the first connecting pipe (P1); An AMP-PAN resin supply tank (120) having a reagent supply port (121) connected in communication with the 2A inlet (62) of the AMP-PAN resin column tube (60), and having AMP-PAN resin stored inside, and supplying AMP-PAN resin to the AMP-PAN resin column tube (60); A TEVA resin supply tank (130) having a reagent supply port (131) connected in communication with the 2B inlet (72) of the TEVA resin column tube (70), a tank in which TEVA resin is stored internally, and which supplies TEVA resin to the TEVA resin column tube (70); A TK-102 resin supply tank (140) having a reagent supply port (141) connected to the second C inlet (82) of the TK-102 resin column tube (80) and having TK-102 resin stored inside, and supplying TK-102 resin to the TK-102 resin column tube (80); First to third quantitative pumping means (150)(151)(152) each mounted on the reagent supply ports (121)(131)(141) of the AMP-PAN resin supply tank (120), TEVA resin supply tank (130), and TK-102 resin supply tank (140), and supplying a preset amount of reagent into the AMP-PAN resin supply tank (120), TEVA resin supply tank (130), and TK-102 resin supply tank (140), respectively; A quantitative supply unit having a nitric acid storage tank, a nitric acid supply unit (160) connected in communication with the nitric acid inlet (24) of the liquid environment sample reaction tank (20), and a nitric acid supply unit (160) for supplying nitric acid to the liquid environment sample (LES) in the liquid environment sample reaction tank (20); A quantitative supply unit having a separator storage tank, and a separator supply unit (170) connected in communication with the separator inlet (25) of the liquid environment sample reaction tank (20) and supplying a separator to the liquid environment sample (LES) in the liquid environment sample reaction tank (20); A first pumping means (180) mounted on the liquid environment sample inlet (24) of the liquid environment sample reaction tank (20) and pumping the liquid environment sample (LES) collected into the liquid environment sample reaction tank (20); A second pumping means (181) mounted on the liquid environment sample supply port (21) of the liquid environment sample reaction tank (20) and pumping the pre-treated liquid environment sample (LES) through the first connecting pipe (P1) to each of the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80); A first solenoid valve (190) mounted on the equilibrium solution supply port (111) of the equilibrium solution tank (110) and opening and closing the equilibrium solution supply port (111); Second to fourth solenoid valves (191)(192)(193) that are respectively mounted on the first A inlet (61) of the AMP-PAN resin column tube (60), the first B inlet (71) of the TEVA resin column tube (70), and the first C inlet (81) of the TK-102 resin column tube (80), and respectively open and close the first A inlet (61) of the AMP-PAN resin column tube (60), the first B inlet (71) of the TEVA resin column tube (70), and the first C inlet (81) of the TK-102 resin column tube (80); 5th to 7th solenoid valves (194)(195)(196) that are respectively mounted on the 1A outlet (63) of the AMP-PAN resin column tube (60), the 1B outlet (73) of the TEVA resin column tube (70), and the 1C outlet (83) of the TK-102 resin column tube (80), and respectively open and close the 1A outlet (63) of the AMP-PAN resin column tube (60), the 1B outlet (73) of the TEVA resin column tube (70), and the 1C outlet (83) of the TK-102 resin column tube (80); 8th to 10th solenoid valves (197)(198)(199) that are respectively mounted on the 2A outlet (64) of the AMP-PAN resin column tube (60), the 2B outlet (74) of the TEVA resin column tube (70), and the 2C outlet (84) of the TK-102 resin column tube (80), and respectively open and close the 2A outlet (64) of the AMP-PAN resin column tube (60), the 2B outlet (74) of the TEVA resin column tube (70), and the 2C outlet (84) of the TK-102 resin column tube (80); A TEVA resin column tube regenerator supply tank (200) having a regenerator supply port (201) connected in communication with the 2B inlet (82) of the TEVA resin column tube (70), a tank in which a TEVA resin column tube regenerator is stored inside, and which supplies the TEVA resin column tube regenerator to the TEVA resin column tube (70); A first solenoid valve (199-1) mounted on the regenerating agent supply port (201) of the TEVA resin column tube regenerating agent supply tank (200) and opening and closing the regenerating agent supply port (201); A 12th solenoid valve (199-2) mounted on the waste liquid environment sample discharge port (22) of the above liquid environment sample reaction tank (20) and opening and closing the waste liquid environment sample discharge port (22); A cesium analysis means (210) which is an HPGe analyzer and performs a radiological analysis of cesium in a liquid environment sample through a vial in which an eluent containing concentrated cesium is stored and discharged through the 2A outlet (64) of the AMP-PAN resin column tube (60); A liquid scintillation counter (LSC), and a plutonium and strontium analysis means (220) for performing radiological analysis of plutonium and strontium in a liquid environment sample through a vial containing an eluent containing concentrated plutonium discharged through the 2B outlet (74) of the TEVA resin column tube (70) and a vial containing deionized water containing concentrated strontium discharged through the 2C outlet (84) of the TK-102 resin column tube (80); A transfer device operated by a PLC (Progrannable Logic Controller), wherein a vial (V) is placed at the 2A outlet (64) of the AMP-PAN resin column tube (60), the 2B outlet (74) of the TEVA resin column tube (70), and the 2C outlet (84) of the TK-102 resin column tube (80), and each vial (V) filled inside is transferred and placed into the sample analysis section of the cesium analysis means (210) or the plutonium and strontium analysis means (220), and the vial after analysis is completed is removed from each sample analysis section; a vial transfer unit (230); The above stirring device (30), pH sensing means (40), water level sensing means (50), nitric acid supply unit (160), separation agent supply unit (170), first and second pumping means (180)(181), first to twelfth solenoid valves (190)(191)(192)(193)(194)(195)(196)(197)(198)(199)(199-1)(199-2), first to third quantitative pumping means (150)(151)(152), cesium analysis means (210), plutonium and strontium analysis means (220), and vial transfer unit (230) are each connected to the above, and based on the sensing signal received from the pH sensing means (40) and water level sensing means (50), the first and second pumping means (180)(181) and nitric acid supply A control unit (240) that controls the operation of the unit (160) and controls the operation of each corresponding component according to the installed control program and the received operator's operation command; A radioactive nuclide in a large volume liquid environmental sample, characterized by comprising a display unit for displaying the operating status of the above-mentioned stirring device (30), pH sensing means (40), water level sensing means (50), nitric acid supply unit (160), separation agent supply unit (170), first and second pumping means (180)(181), first to twelfth solenoid valves (190)(191)(192)(193)(194)(195)(196)(197)(198)(199)(199-1)(199-2), first to third quantitative pumping means (150)(151)(152), cesium analysis means (210), plutonium and strontium analysis means (220), and vial transfer unit (230), and a command input unit for inputting operation commands, and a control panel (250) connected to the above-mentioned control unit (240) for inputting commands from an operator. Cesium (Cs), strontium (Sr), and plutonium (Pu) extraction and analysis device.
  8. A liquid environmental sample reaction tank (20) having a hollow interior and pre-processing a liquid environmental sample (LES) collected therein, having a liquid environmental sample supply port (21) for supplying the liquid environmental sample on one side of the bottom, a waste liquid environmental sample discharge port (22) for discharging waste liquid environmental sample (WLES) on the other side of the bottom, a liquid environmental sample inlet port (23) for introducing the collected liquid environmental sample into the interior on one side of the top, a nitric acid inlet port (24) for introducing nitric acid on the top surface, and a separation agent inlet port (25) for introducing a separation agent on the top surface; a stirring device (30) embedded within the liquid environmental sample reaction tank (20) and stirring the liquid environmental sample; and a pH sensing means (40) embedded within the liquid environmental sample reaction tank (20) and detecting the pH of the liquid environmental sample (LES) and transmitting the pH detection signal; A liquid level detection means (50) embedded in the liquid environment sample reaction tank (20), detecting the liquid environment sample (LES) level and transmitting the liquid level detection signal; and an AMP-PAN resin column tube (60) having a first A and second A inlet port (61)(62) at the top and a first A and second A outlet port (63)(64) at the bottom, wherein the first A inlet port (61) is connected in parallel to the liquid environment sample supply port (21) of the liquid environment sample reaction tank (20) through a first connecting pipe (P1); A TEVA resin column tube (70) having first B and second B inlets (71)(72) at the top and first B and second B outlets (73)(74) at the bottom, wherein the first B inlet (71) is connected in parallel to the liquid environment sample supply port (21) of the liquid environment sample reaction tank (20) through a first connecting pipe (P1); and a TK-102 resin column tube (80) having first C and second C inlets (81)(82) at the top and first C and second C outlets (83)(84) at the bottom, wherein the first C inlet (81) is connected in parallel to the liquid environment sample supply port (21) of the liquid environment sample reaction tank (20) through a first connecting pipe (P1); A tank having a discharge inlet (91) connected in communication with a second connecting pipe (P2), and a discharge storage tank (90) that is connected in parallel to the first A discharge port (63) of the AMP-PAN resin column tube (60), the first B discharge port (73) of the TEVA resin column tube (70), and the first C discharge port (83) of the TK-102 resin column tube (80), respectively through the second connecting pipe (P2), and stores the discharge (E) discharged through the first A discharge port (63), the first B discharge port (73), and the first C discharge port (83); A tank having a liquid environment sample inlet (101) connected in communication with the liquid environment sample outlet (22) of the liquid environment sample reaction tank (20), and a waste liquid environment sample storage tank (100) that stores a waste liquid environment sample (WLES) discharged through the liquid environment sample outlet (22); and a equilibration solution tank (110) having a equilibration solution supply port (111) connected in communication with the first connecting pipe (P1), and supplying the equilibration solution into the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80) through the first connecting pipe (P1); An AMP-PAN resin supply tank (120) having a reagent supply port (121) connected in communication with the 2A inlet (62) of the AMP-PAN resin column tube (60), which is a tank in which AMP-PAN resin is stored, and which supplies the AMP-PAN resin to the AMP-PAN resin column tube (60); and a TEVA resin supply tank (130) having a reagent supply port (131) connected in communication with the 2B inlet (72) of the TEVA resin column tube (70), which is a tank in which TEVA resin is stored, and which supplies the TEVA resin to the TEVA resin column tube (70); A TK-102 resin supply tank (140) having a reagent supply port (141) connected to the second C inlet (82) of the TK-102 resin column tube (80) and having TK-102 resin stored inside, and supplying TK-102 resin to the TK-102 resin column tube (80); First to third quantitative pumping means (150)(151)(152) each mounted on the reagent supply ports (121)(131)(141) of the AMP-PAN resin supply tank (120), TEVA resin supply tank (130), and TK-102 resin supply tank (140), and quantitatively supplying a preset amount of reagent into the AMP-PAN resin supply tank (120), TEVA resin supply tank (130), and TK-102 resin supply tank (140); a quantitative supply unit having a nitric acid storage tank, connected in communication with the nitric acid inlet port (24) of the liquid environment sample reaction tank (20), and a nitric acid supply unit (160) for introducing nitric acid into the liquid environment sample (LES) in the liquid environment sample reaction tank (20); A quantitative supply unit having a separation agent storage tank, connected in communication with the separation agent inlet (25) of the liquid environment sample reaction tank (20), and a separation agent supply unit (170) for introducing a separation agent into the liquid environment sample (LES) in the liquid environment sample reaction tank (20); a first pumping means (180) mounted on the liquid environment sample inlet (24) of the liquid environment sample reaction tank (20) and pumping the liquid environment sample (LES) collected into the liquid environment sample reaction tank (20); and a second pumping means (181) mounted on the liquid environment sample supply port (21) of the liquid environment sample reaction tank (20) and pumping the pre-treated liquid environment sample (LES) through the first connecting pipe (P1) to each of the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80); A first solenoid valve (190) mounted on the equilibration solution supply port (111) of the equilibration solution tank (110) and opening and closing the equilibration solution supply port (111); and second to fourth solenoid valves (191)(192)(193) respectively mounted on the first inlet port (61) of the AMP-PAN resin column tube (60), the first inlet port (71) of the TEVA resin column tube (70), and the first inlet port (81) of the TK-102 resin column tube (80), and opening and closing the first inlet port (61) of the AMP-PAN resin column tube (60), the first inlet port (71) of the TEVA resin column tube (70), and the first inlet port (81) of the TK-102 resin column tube (80); 5th to 7th solenoid valves (194)(195)(196) that are respectively mounted on the 1A outlet (63) of the AMP-PAN resin column tube (60), the 1B outlet (73) of the TEVA resin column tube (70), and the 1C outlet (83) of the TK-102 resin column tube (80), and respectively open and close the 1A outlet (63) of the AMP-PAN resin column tube (60), the 1B outlet (73) of the TEVA resin column tube (70), and the 1C outlet (83) of the TK-102 resin column tube (80); 8th to 10th solenoid valves (197)(198)(199) that are respectively mounted on the 2A outlet (64) of the AMP-PAN resin column tube (60), the 2B outlet (74) of the TEVA resin column tube (70), and the 2C outlet (84) of the TK-102 resin column tube (80), and respectively open and close the 2A outlet (64) of the AMP-PAN resin column tube (60), the 2B outlet (74) of the TEVA resin column tube (70), and the 2C outlet (84) of the TK-102 resin column tube (80); A TEVA resin column tube regenerating agent supply tank (200) having a regenerating agent supply port (201) connected to communicate with the 2B inlet (82) of the TEVA resin column tube (70), and a tank in which a TEVA resin column tube regenerating agent is stored inside, and which supplies the TEVA resin column tube regenerating agent to the TEVA resin column tube (70); a 11th solenoid valve (199-1) mounted on the regenerating agent supply port (201) of the TEVA resin column tube regenerating agent supply tank (200) and which opens and closes the regenerating agent supply port (201); and a 12th solenoid valve (199-2) mounted on the waste liquid environment sample discharge port (22) of the liquid environment sample reaction tank (20) and which opens and closes the waste liquid environment sample discharge port (22); A cesium analysis means (210) which is an HPGe analyzer and performs radiological analysis of cesium in a liquid environment sample through a vial storing an eluent containing concentrated cesium discharged through the 2A outlet (64) of the AMP-PAN resin column tube (60); and a plutonium and strontium analysis means (220) which is a liquid scintillation counter (LSC) and performs radiological analysis of plutonium and strontium in a liquid environment sample through a vial storing an eluent containing concentrated plutonium discharged through the 2B outlet (74) of the TEVA resin column tube (70) and a vial storing deionized water containing concentrated strontium discharged through the 2C outlet (84) of the TK-102 resin column tube (80); A transfer device operated by a PLC (Progrannable Logic Controller), a vial transfer unit (230) that places vials respectively at the 2A outlet (64) of the AMP-PAN resin column tube (60), the 2B outlet (74) of the TEVA resin column tube (70), and the 2C outlet (84) of the TK-102 resin column tube (80), transfers and places each filled vial into the sample analysis section of the cesium analysis means (210) or the plutonium and strontium analysis means (220), and removes the vials that have been analyzed from each sample analysis section; The above stirring device (30), pH sensing means (40), water level sensing means (50), nitric acid supply unit (160), separation agent supply unit (170), first and second pumping means (180)(181), first to twelfth solenoid valves (190)(191)(192)(193)(194)(195)(196)(197)(198)(199)(199-1)(199-2), first to third quantitative pumping means (150)(151)(152), cesium analysis means (210), plutonium and strontium analysis means (220), and vial transfer unit (230) are each connected to the above, and based on the sensing signal received from the pH sensing means (40) and water level sensing means (50), the first and second pumping means (180)(181) and nitric acid supply A control unit (240) that controls the operation of the unit (160) and controls the operation of each corresponding component according to the installed control program and the received operator's operation command; A radioactive nuclide in a large volume liquid environment sample, comprising a control panel (250) connected to the control unit (240) for inputting commands from an operator, and having a display unit for displaying the operating status of the above-mentioned stirring device (30), pH sensing means (40), water level sensing means (50), nitric acid supply unit (160), separation agent supply unit (170), first and second pumping means (180)(181), first to twelfth solenoid valves (190)(191)(192)(193)(194)(195)(196)(197)(198)(199)(199-1)(199-2), first to third quantitative pumping means (150)(151)(152), cesium analysis means (210), plutonium and strontium analysis means (220), and vial transfer unit (230), and a command input unit for inputting operating commands. A method for controlling a device for extracting and analyzing radioactive nuclides, namely cesium (Cs), strontium (Sr), and plutonium (Pu), in a large volume liquid environment sample, for controlling the operation of a device for extracting and analyzing cesium (Cs), strontium (Sr), and plutonium (Pu), wherein The above control method is, A liquid environment sample filling step (CS100) in which the first to twelfth solenoid valves (190 to 199-2) are operated to a closed state and the first pumping means (180) is operated to introduce the collected liquid environment sample (LES) into the liquid environment sample reaction tank (20); A liquid environment sample level checking step (CS200) for checking whether the liquid environment sample level in the liquid environment sample reaction tank (20) has reached a preset level; In the above liquid environment sample level verification step (CS200), if the liquid environment sample (LES) level reaches a preset level, a liquid environment sample filling stop step (CS300) for stopping the operation of the first pumping means (180); A first liquid environment sample pH value verification step (CS400) for verifying whether the pH value of the liquid environment sample (LES) in the liquid environment sample reaction tank (20) is a preset pH value; In the above liquid environment sample pH value verification step (CS400), if the pH value of the liquid environment sample (LES) is not a preset pH value, a liquid environment sample pH adjustment step (CS500) in which a nitric acid supply unit (160) is operated to supply nitric acid to the liquid environment sample (LES) and a stirring device (30) is operated to stir the liquid environment sample (LES); A secondary liquid environment sample pH value verification step (CS600) for verifying whether the pH value of the liquid environment sample (LES) in the liquid environment sample reaction tank (20) is a preset pH value; In the above second liquid environment sample pH value verification step (CS600), if the pH value of the liquid environment sample (LES) reaches a preset pH value, or in the above first liquid environment sample pH value verification step (CS400), if the pH value of the liquid environment sample is a preset pH value, the nitric acid supply unit (160) is stopped to stop the injection of nitric acid, and at the same time, the separation agent supply unit (170) is started to inject a certain amount of separation agent into the liquid environment sample (LES), and after the injection of the separation agent is completed and a certain amount of time has elapsed, the operation of the stirring device (30) is stopped in a separation agent injection step (CS700); A resin filling step (CS800) of operating the first to third quantitative pumping means (150 to 152) to fill the AMP-PAN resin, TEVA resin, and TK-102 resin into the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80), respectively; An equilibration step (CS900) in which the 1st to 7th solenoid valves (191 to 196) are operated in an open state to flow the equilibration solution stored in the equilibration solution tank (110) into the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80) filled with resin, thereby equilibrating the TEVA resin column tube (70) and TK-102 resin column tube (80), respectively; If the above equilibration step (CS900) is completed, the first and fourth to seventh solenoid valves (190, 194 to 196) are operated to a closed state, and the second pumping means (181) is operated to load a liquid environment sample (LES) into the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80) in a liquid environment sample loading step (CS1000); If the above liquid environment sample loading step (CS1000) is completed, the operation of the second pumping means (181) is stopped to stop the loading of the liquid environment sample, and a loading state maintaining step (CS1100) is performed to maintain the loading state for a preset time; A loading state maintenance time check step (CS1200) that checks whether a preset time has elapsed; In the above step of checking the loading state maintenance time (CS1200), if the loading state maintenance time has elapsed, the liquid environmental sample discharge step (CS1300) in which the 5th to 7th solenoid valves (194 to 196) are operated to the open state to discharge the liquid environmental sample (LES) loaded in the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80), respectively, to the discharge storage tank (90); A column tube cleaning step (CS1400) in which the first solenoid valve (190) is operated in an open state to flow the equilibration solution in the equilibration solution tank (110) into the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80), respectively, to clean the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80); An analysis eluent collection step (CS1500) in which the 5th to 7th solenoid valves (194 to 196) are operated to a closed state and the 8th to 10th solenoid valves (197 to 199) are operated to an open state to collect the eluents containing cesium, plutonium, and sruntium, respectively, in the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80) into respective vials (V); If the above analysis eluent collection step (CS1500) is completed, the 8th to 10th solenoid valves (197 to 199) are operated to a closed state, and the 5th to 7th solenoid valves (194 to 196) are operated to an open state. Then, the 1st solenoid valve (190) is operated to an open state to flow the equilibration solution in the equilibration solution tank (110) into the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column tube (80), respectively, and at the same time, the 11th solenoid valve (199-1) is operated to an open state to flow the TEVA resin column tube regenerator in the TEVA resin column tube regenerator supply tank (200) into the TEVA resin column tube (70), thereby affecting the AMP-PAN resin column tube (60), TEVA resin column tube (70), and TK-102 resin column A column tube regeneration and washing step (CS1600) for performing washing and regeneration on the tube (80); If the above column tube regeneration and cleaning step (CS1600) is completed, the waste liquid environment sample discharge step (CS1700) in which the 12th solenoid valve (199-2) is operated in an open state to discharge the waste liquid environment sample (WLES) in the liquid environment sample reaction tank (20) into the waste liquid environment sample storage tank (100); A vial transfer step (CS1800) of operating a vial transfer unit (230) to transfer each vial (V) in which the eluent is stored into the sample analysis section of a cesium analysis means (210) or a plutonium and sruntium analysis means (220); A control method for an apparatus for extracting and analyzing radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environment sample, characterized by comprising an eluent analysis step (CS1900) in which, if the above vial transfer step (CS1800) is completed, the above cesium analysis means (210) or plutonium and strontium analysis means (220) is activated to perform an analysis of the eluent in the vial (V).

Description

A method for extraction and analysis of radionuclides Cesium (Cs), Strontium (Sr), and Plutonium (Pu) from large-volume liquid environmental samples, apparatus therefor, and method for controlling the apparatus The present invention relates to a method for extracting and analyzing radioactive nuclides such as cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environmental sample, an apparatus thereof, and a method for controlling the apparatus thereof. More specifically, the invention relates to a method for extracting and analyzing radioactive nuclides such as cesium (Cs), strontium (Sr), and plutonium (Pu) from a large volume liquid environmental sample, an apparatus thereof, and a method for controlling the apparatus thereof, which enables highly efficient extraction of radioactive nuclides such as cesium (Cs), strontium (Sr), and plutonium (Pu) from various large volume environmental samples, such as seawater, river water, and industrial wastewater, and rapid and accurate analysis of the extracted radioactive nuclides. Cesium (Cs), strontium (Sr), and plutonium (Pu) are radioactive nuclides that can be released into the ocean, etc., through radioactive material leakage accidents that occur during the normal operation and decommissioning of nuclear power plants or through radioactive material leakage accidents caused by natural disasters such as the Tsukushima nuclear accident in Japan. Conventional extraction methods for cesium (Cs), strontium (Sr), and plutonium (Pu) in liquid environment samples include organic solvent extraction and selective ion exchange. Due to the fire hazards associated with the volatility of organic solvents, organic solvent extraction methods have recently seen extensive research being conducted to replace them with ionic liquids. Liquid-liquid extraction methods using ionic liquids (ILs), currently being researched and developed worldwide, utilize ionic liquids as solvents instead of conventional saturated hydrocarbons to prevent the risks associated with solvent evaporation and fire. Generally, liquid-liquid extraction methods utilize the difference in specific gravity between two phases to separate them using a mixer settler or an extraction tower. However, seawater has very low concentrations of cesium (Cs), strontium (Sr), and plutonium (Pu), so the volume ratio of the ionic liquid phase is very small, which is a fraction of a hundredth, making it difficult to implement existing liquid-liquid separation processes. In addition, these conventional extraction methods for cesium (Cs), strontium (Sr), and plutonium (Pu) extract cesium (Cs), strontium (Sr), and plutonium (Pu) into an ionic liquid phase. As a result, the extracted ionic liquid phases of cesium (Cs), strontium (Sr), and plutonium (Pu) are difficult to handle and have many handling limitations, which significantly reduces the productivity of the analysis of cesium-137 in seawater samples. Furthermore, while cost-effective for the analysis of cesium-137 in small seawater samples of less than 100 cc, these methods are not suitable for the analysis of cesium (Cs), strontium (Sr), and plutonium (Pu) in large-volume seawater samples of 100 liters. FIGS. 1a to 1c are flowcharts illustrating the configuration of a method for extracting and analyzing radioactive nuclides, namely cesium (Cs), strontium (Sr), and plutonium (Pu), from a large volume liquid environment sample according to the present invention, and FIG. 2 is a schematic diagram illustrating the configuration of an extraction and analysis device for radioactive nuclides, namely cesium (Cs), strontium (Sr), and plutonium (Pu), from a large-volume liquid environment sample according to the present invention. FIG. 3 is a block diagram illustrating the components connected to the control unit and the mutual organic correlation between the components among the components of the device for extracting radioactive nuclides cesium (Cs), strontium (Sr), and plutonium (Pu) from a large-volume liquid environment sample according to the present invention illustrated in FIG. 2. FIGS. 4a and 4b are flowcharts illustrating the configuration of a control method for controlling the operation of a radioactive nuclide extraction and analysis device for cesium (Cs), strontium (Sr), and plutonium (Pu) in a large volume liquid environment sample according to the present invention as illustrated in FIG. 2. The present invention will be described in more detail below with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. Therefore, the embodiments described in this specification and the configuratio