KR-102961923-B1 - Liquid sample observation device for chemical analysis and method of observation using the same

Abstract

The present invention provides a liquid sample observation device for chemical analysis and a method for observing a liquid sample using the same. The liquid sample observation device of the present invention includes a sample holder, a light source, a camera, a display, a spraying unit, and a control unit, enabling accurate remote observation of whether a sample solution is dissolved while protecting the observer from gases emitted from inside the sample container.

Inventors

• 송영철
• 김기현
• 김정택
• 박지원

Assignees

• 한국화학연구원

Dates

Publication Date

20260507

Application Date

20230817

Claims (12)

1. A sample holder for holding a sample container containing a sample solution; A light source unit disposed in the sample holder and comprising at least one light source; A camera unit for capturing an internal image of the sample container; A display unit that displays an image captured by the above camera unit in the direction of an observer; A spray unit positioned above the sample holder and exhausting gas discharged from inside the sample container in the opposite direction of the observer through air injection; and It includes a control unit that controls the operation of the light source unit, the camera unit, the display unit, or the spraying unit based on the mounting state of the sample container, and The above sample holder includes at least one mounting groove, and The sample container is received in the above-mentioned mounting groove, and The above light source is a liquid sample observation device placed on the above mounting groove.
2. In claim 1, A liquid sample observation device characterized by further including a fastening member formed to be coupled to the upper part of the sample holder and coupled to the camera part, the display part, or the spray part.
3. In claim 1, A liquid sample observation device characterized by the above-described control unit controlling the light source unit to automatically irradiate light onto the sample container when the sample container is mounted on the sample mounting unit.
4. In claim 3, A liquid sample observation device characterized by the above-described control unit controlling the color or intensity of light irradiated from the light source unit to change according to the type of sample solution.
5. In claim 3, A liquid sample observation device characterized by the above-described control unit controlling the spray unit to operate together with the light source unit when the above-described sample container is mounted on the above-described sample mounting unit.
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8. In claim 1, A liquid sample observation device characterized in that the light source is an LED emitting white light, red light, green light, or blue light.
9. In claim 1, A liquid sample observation device characterized in that the shooting direction of the camera unit is perpendicular to the air injection direction of the injection unit.
10. A method for observing a liquid sample using a liquid sample observation device as described in any one of claims 1 to 5 and claims 8 to 9, wherein Step of placing a sample container containing a sample solution (S10); Step of irradiating light onto the sample container (S20); Step (S30) of capturing an internal image of the sample container and displaying it in the direction of an observer; and A method for observing a liquid sample, comprising the step (S40) of exhausting the gas discharged from the sample container in the opposite direction of the observer through air injection.
11. In claim 10, In the above S20 step, A method for observing a liquid sample characterized by changing the color or intensity of the light irradiated according to the type of sample solution.
12. In claim 10, A method for observing a liquid sample characterized by performing the above steps S20 to S40 simultaneously.

Description

Liquid sample observation device for chemical analysis and method of observation using the same The present invention relates to a liquid sample observation device for chemical analysis and a method for observing a liquid sample using the same. More specifically, the invention relates to a liquid sample observation device for chemical analysis and a method for observing a liquid sample using the same, which can accurately observe remotely whether a sample solution contained in a sample container is dissolved while protecting an observer from gases emitted from inside the sample container. Sample pretreatment is essential in qualitative or quantitative analysis using inductively coupled plasma atomic emission spectroscopy (ICP-AES) or mass spectrometry (ICP-MS). The sample pretreatment process is designed to liquefy the sample; it involves mixing a strong acid solution with the sample to dissolve impurities and diluting it with the strong acid solution to adjust the sample concentration to a specified level (ranging from ppm to several percent). Typically, the process of mixing a strong acid solution into a sample to dissolve impurities and verifying the dissolution involves an observer opening the lid of the sample container and visually inspecting it using a flashlight or similar device. The process of dissolving impurities in a sample involves injecting a strong acid into a sample container containing the sample, sealing it, and then carrying out the process in a high-temperature and high-pressure environment. Consequently, when the lid of the sample container is opened, a large amount of acid gas is released from the inside of the container to the outside, posing a significant threat to the safety of the observer. Furthermore, since the observer observes the dissolution visually, it is difficult to accurately verify the result. FIG. 1 is a perspective view of a liquid sample observation device according to one embodiment of the present invention. FIG. 2 is a schematic side view of a liquid sample observation device according to one embodiment of the present invention. FIG. 3 is a conceptual diagram of a liquid sample observation device according to one embodiment of the present invention. FIG. 4 is a drawing showing a sample holder of a liquid sample observation device according to one embodiment of the present invention. FIG. 5 is a drawing showing a sample holder of a liquid sample observation device according to another embodiment of the present invention. FIG. 6 is a drawing showing a light source part of a liquid sample observation device according to one embodiment of the present invention. FIG. 7 is an enlarged view of the camera section and the spray section of a liquid sample observation device according to one embodiment of the present invention. FIG. 8 is a diagram showing the usage state of a liquid sample observation device according to one embodiment of the present invention. FIG. 9 is a flowchart of a method for observing a liquid sample according to one embodiment of the present invention. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Accordingly, in some embodiments, well-known process steps, well-known device structures, and well-known techniques are not specifically described to avoid the present invention being interpreted ambiguously. Throughout the specification, like reference numerals refer to like components. The terms used herein are for describing the embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and/or "comprising" do not exclude the presence or addition of one or more other components, steps, actions, and/or elements to the mentioned components, steps, actions, and/or elements. In each step, identification codes are used for convenience of explanation and do not describe the order of the steps; unless the context clearly indicates a specific order, the steps may be performed differently from the specified order. That is, the steps may be performed in the same order as specified, substantially simultaneously, or in the reverse order. Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used