CN-122017057-A - Detector for multiphase liquid chromatograph

Abstract

The utility model provides a multiphase detector for liquid chromatograph, including the installation base, be fixed with multiphase liquid chromatograph on the installation base, the installation base rear side is fixed with the installing support, it has the sliding tray to open on the installing support, the cross section of sliding tray is the convexity, sliding connection has the sliding tray in the sliding tray, the sliding tray downside is glued and is had the spacer sleeve, the spacer sleeve is collapsible, the spacer sleeve downside is glued on the installation base, be fixed with the screw thread section of thick bamboo on the sliding tray, rotate between installation base and the installing support and be connected with the threaded rod, threaded rod and screw thread section of thick bamboo threaded connection, the threaded rod is driven by the motor. The flexible foldable isolation sleeve is arranged on the periphery of the detector for the multiphase liquid chromatograph, so that the detection cavity can form a semi-closed microenvironment by only lifting the sleeve body upwards along the guide rail when the detector is used, physical interference such as airflow, dust, temperature mutation and external vibration is effectively blocked, and stability and high precision of the multiphase liquid chromatograph signals are ensured.

Inventors

• LIU LILI
• ZHANG ZHIYAO
• Ding Liangzhu

Assignees

• 江苏同济分析仪器有限公司

Dates

Publication Date

20260512

Application Date

20251212

Claims (6)

1. 1. The detector for the multiphase liquid chromatograph comprises a mounting base (1) and is characterized in that the multiphase liquid chromatograph (2) is fixed on the mounting base (1), a mounting bracket (3) is fixed on the rear side of the mounting base (1), a sliding groove (4) is formed in the mounting bracket (3), the cross section of the sliding groove (4) is convex, a sliding bracket (5) is connected in the sliding groove (4) in a sliding manner, a spacer sleeve (6) is glued on the lower side of the sliding bracket (5), the spacer sleeve (6) is foldable, a threaded cylinder (7) is fixed on the sliding bracket (5), a threaded rod (8) is connected between the mounting base (1) and the mounting bracket (3) in a rotating manner, and the threaded rod (8) is connected with the threaded cylinder (7) in a threaded manner and is driven by a motor.
2. 2. The detector for the multiphase liquid chromatograph according to claim 1, wherein the inner layer of the isolation sleeve (6) is glued with a heat insulation-electromagnetic shielding layer, and the heat insulation-electromagnetic shielding layer of the isolation sleeve (6) is formed by flexible multilayer materials formed by hot pressing an aerogel composite felt or an aluminum foil bubble film and conductive fiber cloth.
3. 3. The detector for the multiphase liquid chromatograph of claim 1, wherein the mounting bracket (3) is fixedly provided with a micro frequency conversion compressor cooling and heating integrated machine (9), and the mounting bracket (3) is provided with an air outlet (10) at the lower side of the micro frequency conversion compressor cooling and heating integrated machine (9).
4. 4. The detector for the multi-phase liquid chromatograph according to claim 1, wherein the supporting seats (11) are fixed on the lower side of the installation base (1), the number of the supporting seats (11) is four, and a control panel (12) is installed on the installation base (1).
5. 5. The detector for the multiphase liquid chromatograph, as set forth in claim 4, characterized in that the mounting base (1) is rotatably connected with a threaded telescopic rod (13), the threaded telescopic rod (13) is connected with a telescopic base (14) in a threaded manner, the telescopic base (14) is provided with a limiting hole, the mounting base (1) is fixedly provided with a limiting rod (15), the limiting rod (15) slides in the limiting hole of the telescopic base (14), and the threaded telescopic rod (13) is driven by a motor.
6. 6. The detector for a multi-phase liquid chromatograph according to claim 5, wherein a spring buffer rod (16) is fixed to the telescopic base (14), and a multi-phase liquid chromatograph (2) is fixed to the spring buffer rod (16).

Description

Detector for multiphase liquid chromatograph Technical Field The invention relates to the technical field of chromatographs, in particular to a detector for a multiphase liquid chromatograph. Background The multi-phase liquid chromatograph detector is a high-end analysis means which is developed towards the requirements of synchronous separation and multi-dimensional detection of complex samples, is connected with a plurality of principle detectors such as UV, FLD, CAD, MS in series at the tail end of the traditional HPLC, can obtain multi-parameter information such as retention time, spectrum, charge, mass-to-charge ratio and the like in one operation, and remarkably improves peak capacity and qualitative and quantitative reliability. The configuration is used for screening related substances of medicines, monitoring components profiling of natural products, metabonomics, food safety and environmental trace pollutants, realizes the whole process data from early research and development to quality control to be comparable, reduces repeated sample injection and standard dependence, and provides a panoramic analysis platform for complex systems. According to the Chinese patent with the patent number of CN219957477U, a liquid chromatograph for industrial wastewater detection is disclosed, the structure of the liquid chromatograph comprises a chromatograph body, a control panel is arranged on the front end face of the chromatograph body, a storage barrel is embedded at the top of the chromatograph body, a liquid injection part is movably embedded on the storage barrel, a liquid injection interface is arranged on one side of the liquid injection part, an electric storage type sample inlet structure is adopted, the liquid chromatograph has the advantages of dust prevention and convenience in use, during use, the control panel is operated, a linear driver drives a sliding block and moves upwards, the sliding block drives the liquid injection part to extend out of the storage barrel, a telescopic pipeline stretches to deform, the liquid injection interface is exposed, a worker can align the liquid injection device with the liquid injection interface, then trace industrial wastewater to be detected is injected into a flow channel, and then enters a chromatographic column through the telescopic pipeline to perform detection work. However, in the use process of the existing detector for the multiphase liquid chromatograph, the device is easily influenced by external physical factors (such as temperature fluctuation, electromagnetic interference, air flow disturbance and the like) in the detection stage, so that a detection signal is drifted or noise is increased, the precision of a detection result is reduced, and further the problems of qualitative misjudgment, quantitative deviation and peak identification errors are caused. Disclosure of Invention The technical problem to be solved by the invention is to solve the problems that in the use process of the existing detector for the multi-phase liquid chromatograph, the equipment is easily influenced by external physical factors (such as temperature fluctuation, electromagnetic interference, air flow disturbance and the like) in the detection stage, so that the detection signal is drifted or noise is increased, the precision of a detection result is reduced, and further qualitative misjudgment, quantitative deviation and peak identification errors are caused. The technical scheme adopted for solving the technical problems is as follows: The utility model provides a multiphase detector for liquid chromatograph, includes the installation base, be fixed with multiphase liquid chromatograph on the installation base, the installation base rear side is fixed with the installing support, it has the sliding tray to open on the installing support, the cross section of sliding tray is the convexity, sliding connection has the sliding tray in the sliding tray, the adhesive spacer sleeve that has of sliding tray downside, the spacer sleeve is collapsible, the spacer sleeve downside is glued on the installation base, be fixed with a screw thread section of thick bamboo on the sliding tray, rotate between installation base and the installing support and be connected with the threaded rod, threaded rod and screw thread section of thick bamboo threaded connection, the threaded rod is driven by the motor, and the motor drive threaded rod is rotatory, and the screw thread section of thick bamboo drives the sliding tray and goes up and down in the convexity sliding tray, realizes that the spacer sleeve is follow-up folding, keeps apart chromatograph and external world as far as possible, avoids dust, air current to interfere, reduces the base line noise, satisfies the demand of multiphase detection to stable environment. As a preferable technical scheme of the invention, the inner layer of the isolation sleeve is glued with the heat insulation-electromagnetic shielding layer, the heat in