CN114166809A - Chemical reaction and separation integrated module of atomic fluorescence spectrophotometer - Google Patents
Chemical reaction and separation integrated module of atomic fluorescence spectrophotometer Download PDFInfo
- Publication number
- CN114166809A CN114166809A CN202111425678.0A CN202111425678A CN114166809A CN 114166809 A CN114166809 A CN 114166809A CN 202111425678 A CN202111425678 A CN 202111425678A CN 114166809 A CN114166809 A CN 114166809A
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- Prior art keywords
- gas
- chemical
- separation
- reaction
- liquid separation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6402—Atomic fluorescence; Laser induced fluorescence
- G01N21/6404—Atomic fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a chemical reaction and separation integrated module of an atomic fluorescence spectrophotometer, which comprises a sample introduction pipeline, a carrier gas inlet, a reaction transmission channel, a chemical reaction cavity, a gas-liquid separation cavity, a chemical gas phase outlet and a waste liquid outlet, and is characterized in that: reaction transmission channel one side connect several sample inlet pipeline, carrier gas air inlet, reaction transmission channel's opposite side with gas-liquid separation intracavity wall tangent connection, the reaction chamber with chemical vapor delivery port tangent connection, chemical reaction chamber bottom with the waste liquid discharge port tangent connection. The invention ensures that the chemical gas phase and the chemical liquid phase are separated more thoroughly, has short separation time, and effectively avoids the adverse effects caused by sample residue and incomplete separation due to multiple interfaces. The invention relates to the field of chemical analysis, and the module can be used in combination with atomic fluorescence, atomic absorption, an inductively coupled plasma spectrometer and the like to realize trace element analysis.
Description
Technical Field
The invention relates to the field of chemical analysis, in particular to a device which can be used in combination with atomic fluorescence, atomic absorption, inductively coupled plasma spectrometer and the like to realize trace element analysis and generates gas phase and waste liquid after a chemical reaction of more than or equal to two liquid-phase components.
Background
Chemical element analysis plays a very important role in the field of chemical analysis, and a method for detecting the content of elements by utilizing the principle that hydride can be generated at normal temperature has the advantages of simple operation, low test cost and the like, and is supported by a plurality of matched methods. At present, the hydride generation method generally adopts a reduction system of sodium borohydride (potassium borohydride) under an alkaline condition. In the above system, gaseous components of arsenic and mercury can also be obtained using suitable catalysts. The hydrogenated or gaseous components can be decomposed under certain conditions (elevated temperature) to produce gaseous atoms. The above-mentioned gaseous atoms can produce characteristic spectrum under the condition of excitation light source (hollow cathode lamp) or ultrahigh-temp. The characteristic spectrum can be detected by an atomic fluorescence, atomic absorption and inductively coupled plasma generation spectrometer to analyze the element content.
At present, a common reaction separation system adopts a simple four-channel module to be connected with a gas-liquid separation module, a connecting part is in a hose or O-shaped sealing ring mode, and residue exists at the connecting part more or less for micro analysis and even trace analysis. The gas-liquid separation part directly enters the gas-liquid separation cavity and is not in buffer transition. This design can result in incomplete separation during gas-liquid separation and pressure instability. The above-described instability causes a fluctuation in the detection signal. Thereby affecting the stability of the test. .
Disclosure of Invention
The invention mainly aims to provide an integrated forming device for chemical gas-phase and liquid-phase reaction and separation, so that the chemical reaction of a sample is more sufficient, and the gas-phase and liquid-phase separation is more complete. The adverse effect caused by instability in the separation process is effectively avoided, and the problems in the background technology can be effectively solved.
In order to achieve the purpose, the technical scheme implemented by the invention is as follows:
the utility model provides an atomic fluorescence spectrophotometer chemical reaction separation module, has included the sampling pipeline, the carrier gas air inlet, and reaction transmission channel, gas-liquid separation chamber, chemical vapor exports, waste liquid pressure balance discharge port, its characterized in that: reaction transmission channel one side connect several sample inlet pipeline, carrier gas air inlet, reaction transmission channel's opposite side with gas-liquid separation intracavity wall tangent connection, the reaction chamber with chemical vapor delivery port tangent connection, chemical reaction chamber bottom with the waste liquid discharge port tangent connection, the pressure balance state can be reachd to waste liquid discharge port and chemical reaction chamber bottom. Not only ensures that the sample fully completes the chemical reaction, but also can not be discharged as waste liquid. The full chemical reaction of the sample is realized, and the gas-liquid separation does not influence the content of the sample.
Compared with the prior art, the invention has the following beneficial effects:
1. the mixed liquid of the reacted chemical gas phase and the chemical liquid phase adopts smooth transition when a narrow reaction transmission channel enters the gas-liquid separation cavity, no sudden change is generated, and the pressure change caused by unstable separation is effectively avoided.
2. When the chemical gas phase and liquid phase mixed liquid enters the gas-liquid separation cavity, the chemical gas phase and liquid phase mixed liquid is slowly and stably separated along the inner part of the gas-liquid separation cavity, so that the separation stability is improved.
3. The waste liquid reaches a pressure balance state with the chemical reaction cavity before being discharged, the waste liquid plays a role in blocking sample loss, and the sample detection limit is improved.
Claims (7)
1. The utility model provides an atomic fluorescence spectrophotometer chemical reaction separation integration module, includes several introduction pipeline (1 a, 1 b), carrier gas air inlet (2), reaction transmission passageway (3), gas-liquid separation chamber (4), chemical gas phase delivery port (5), pressure balance mouth (6) waste liquid discharge port (7) gas-liquid separation reinforcing chamber (8), its characterized in that: reaction transmission channel (3) one side is connected sampling channel (1 a, 1 b), carrier gas air inlet (2), reaction transmission channel (3) opposite side is connected gas-liquid separation chamber (4), gas-liquid separation chamber (4) top is connected chemical vapor delivery port (5), gas-liquid separation chamber bottom connect waste liquid discharge port (7).
2. The integrated module for chemical reaction and separation of atomic fluorescence photometer of claim 1, wherein: the reaction transmission channel (3) is tangentially connected with the gas-liquid separation cavity (4).
3. The integrated module for chemical reaction and separation of atomic fluorescence photometer of claim 1, wherein: sampling pipeline (1 a, 1 b) opening one side is used for connecting the external pipeline, carrier gas is connected to carrier gas inlet (2) opening one side, sampling pipeline more than or equal to one.
4. The integrated module for chemical reaction and separation of atomic fluorescence photometer of claim 1, wherein: the gas-liquid separation cavity (4) is tangentially connected with the chemical gas phase outlet (5) at the top.
5. The integrated module for chemical reaction and separation of atomic fluorescence photometer of claim 1, wherein: the gas-liquid separation cavity (4) is tangentially connected with the waste liquid discharge port (7) at the bottom.
6. The integrated module for chemical reaction and separation of atomic fluorescence photometer of claim 1, wherein: the gas-liquid separation cavity (4) is in tangent connection with the reaction transmission channel (3), the chemical gas phase outlet (4) and the waste liquid outlet (7).
7. The integrated module for chemical reaction and separation of atomic fluorescence photometer of claim 1, wherein: the sample introduction pipeline (1 a, 1 b), the carrier gas inlet (2), the reaction transmission channel (3), the gas-liquid separation cavity (4), the chemical gas phase outlet (5), the pressure balance port (6), the waste liquid outlet (7) and the gas-liquid separation enhancement cavity (8) are all formed in one step by adopting a 3D printing technology, and no connecting pipeline is arranged in the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111425678.0A CN114166809A (en) | 2021-11-27 | 2021-11-27 | Chemical reaction and separation integrated module of atomic fluorescence spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111425678.0A CN114166809A (en) | 2021-11-27 | 2021-11-27 | Chemical reaction and separation integrated module of atomic fluorescence spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114166809A true CN114166809A (en) | 2022-03-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111425678.0A Pending CN114166809A (en) | 2021-11-27 | 2021-11-27 | Chemical reaction and separation integrated module of atomic fluorescence spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114166809A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208476755U (en) * | 2018-03-01 | 2019-02-05 | 北京中和测通仪器有限责任公司 | A kind of chemical gas-phase generating apparatus |
| WO2020087894A1 (en) * | 2018-10-29 | 2020-05-07 | 重庆民泰新农业科技发展集团有限公司 | Outer tube injection-based atomic fluorescence analysis method and atomic fluorescence analyzer |
| CN210571957U (en) * | 2019-04-17 | 2020-05-19 | 汕头出入境检验检疫局检验检疫技术中心 | Improved gas-liquid separator of atomic fluorescence photometer |
| CN210545034U (en) * | 2019-06-19 | 2020-05-19 | 埃坭克仪器(北京)有限公司 | Chemical liquid phase reaction integrated device |
| CN213749593U (en) * | 2020-11-12 | 2021-07-20 | 四川大学 | Atomic spectrum detection device for 3D printing field analysis |
-
2021
- 2021-11-27 CN CN202111425678.0A patent/CN114166809A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208476755U (en) * | 2018-03-01 | 2019-02-05 | 北京中和测通仪器有限责任公司 | A kind of chemical gas-phase generating apparatus |
| WO2020087894A1 (en) * | 2018-10-29 | 2020-05-07 | 重庆民泰新农业科技发展集团有限公司 | Outer tube injection-based atomic fluorescence analysis method and atomic fluorescence analyzer |
| CN210571957U (en) * | 2019-04-17 | 2020-05-19 | 汕头出入境检验检疫局检验检疫技术中心 | Improved gas-liquid separator of atomic fluorescence photometer |
| CN210545034U (en) * | 2019-06-19 | 2020-05-19 | 埃坭克仪器(北京)有限公司 | Chemical liquid phase reaction integrated device |
| CN213749593U (en) * | 2020-11-12 | 2021-07-20 | 四川大学 | Atomic spectrum detection device for 3D printing field analysis |
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Application publication date: 20220311 |