CN201628687U - Inductively-coupled plasma emission spectrometer - Google Patents
Inductively-coupled plasma emission spectrometer Download PDFInfo
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- CN201628687U CN201628687U CN2009202828552U CN200920282855U CN201628687U CN 201628687 U CN201628687 U CN 201628687U CN 2009202828552 U CN2009202828552 U CN 2009202828552U CN 200920282855 U CN200920282855 U CN 200920282855U CN 201628687 U CN201628687 U CN 201628687U
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Abstract
The utility model discloses an inductively-coupled plasma emission spectrometer which comprises a high-frequency generator, an induction coil, a torch tube, an air supply system and a sample introduction system, wherein the torch tube consists of three layers of concentric quartz tubes, the air supply system comprises a tee joint and a switch valve, wherein the air inlet of the tee joint is connected with an argon source, one air outlet thereof is communicated with the concentric quartz tube at the outer layer of the torch tube by a first flow meter, one air inlet of the switch valve is communicated with the other air outlet of the tee joint, the other air inlet of the switch valve is communicated with an oxygen source, and the air outlet of the switch valve is communicated with the concentric quartz tube at the middle layer of the torch tube by a second flow meter. The inductively-coupled plasma emission spectrometer can not form carbon deposition at the opening of the torch tube, thus being capable of ensuring the stable running and correct spectrometry of plasmas.
Description
Technical field
The utility model relates to a kind of inductive coupling plasma emission spectrograph, particularly a kind of air supply system of inductive coupling plasma emission spectrograph.
Background technology
Inductive coupling plasma emission spectrograph (ICP-AES) is obtaining application widely as a kind of Atomic Emission Spectrometer AES device of precision aspect the species analysis, it is mainly used to be used for the qualitative and quantitative test of inorganic elements.Inductive coupling plasma emission spectrograph mainly is made up of radio-frequency generator and induction coil, torch pipe and air supply system, sample drawing-in system three parts.Wherein torch Guan Yousan layer concentric quartz tubes formed, and outer quartz ampoule is used for leading to cold gas, and purpose is to make plasma leave outer quartz ampoule inwall, burns quartz ampoule to avoid it.Flue is done in middle level quartz ampoule outlet, is used for feeding Ar gas, and Ar gas works to keep plasma.The internal layer quartz ampoule injects the sample gasoloid plasma by the carrier gas carrier band, and the sample gasoloid is produced by pneumatic nebulizer or ultrasonic atomizer.
The air supply system of existing torch pipe as shown in Figure 1, comprise a T-valve 11, an air intake opening of T-valve 11 is connected with the Ar source of the gas, two gas outlets of threeway 11 are connected with the middle level quartz ampoule with the outer quartz ampoule of torch pipe 14 by two spinner- type flowmeters 12,13 respectively, Ar gas can be used as cold gas and auxiliary gas to torch pipe 14 air feed, makes the inductive coupling plasma emission spectrograph operate as normal.
But there are following technical difficulties when adopting inductive coupling plasma emission spectrograph that lubricated wet goods organism is analyzed, mainly be after entering inductive coupling plasma emission spectrograph because of organism, under high temperature action, decompose the free carbon that produces easily, these free carbon easily form carbon granules and are deposited on the mouth of pipe, influence the stable operation and the spectroscopic assay of plasma.
The utility model content
At above-mentioned the deficiencies in the prior art, the technical problems to be solved in the utility model provides a kind of inductive coupling plasma emission spectrograph of new structure, and this inductive coupling plasma emission spectrograph can be realized organic check and analysis by changing its air supply system.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of inductive coupling plasma emission spectrograph, comprise radio-frequency generator, induction coil, the torch pipe, air supply system and sample drawing-in system, described torch Guan Yousan layer concentric quartz tubes formed, described air supply system comprises a threeway, described threeway air intake opening is connected with the Ar source of the gas, a gas outlet of described threeway is communicated with the outer quartz ampoule of described torch pipe by the first flow meter, described air supply system also comprises a transfer valve, an air intake opening of described transfer valve is communicated with another gas outlet of described threeway, another air intake opening of described transfer valve is communicated with oxygen source, and the gas outlet of described transfer valve is communicated with the middle level quartz ampoule of described torch pipe by second flowmeter.
Preferably, described first flow meter, second flowmeter are electronic flow-meter.
Technique scheme has following beneficial effect: in this scheme, also be connected with an oxygen source on the air supply system of inductive coupling plasma emission spectrograph, scalable reversal valve when organism is detected makes oxygen enter the middle level quartz ampoule of torch pipe.The uncombined carbon that at high temperature produces when organism just is easy to be become gas by dioxygen oxidation like this, so just can not form carbon at the mouth of pipe of torch pipe and deposit, thereby can guarantee that the stable operation of plasma and spectrum correctly measures.
Description of drawings
Fig. 1 is the air supply system synoptic diagram of existing inductive coupling plasma emission spectrograph.
Fig. 2 is the air supply system synoptic diagram of the utility model embodiment.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with accompanying drawing.
This inductive coupling plasma emission spectrograph mainly is made up of radio-frequency generator and induction coil, torch pipe and air supply system, sample drawing-in system three parts.Wherein torch Guan Yousan layer concentric quartz tubes formed, air supply system as shown in Figure 2, comprise a threeway 21, threeway 21 air intake openings are connected with the Ar source of the gas, a gas outlet of threeway 21 is communicated with the outer quartz ampoule of torch pipe 24 by first flow meter 22, this air supply system also comprises a transfer valve 25, an air intake opening of transfer valve 25 is communicated with another gas outlet of threeway 21, another air intake opening of transfer valve 25 is communicated with oxygen source, and the gas outlet of transfer valve 25 is communicated with the middle level quartz ampoule of torch pipe 24 by second flowmeter 23.First flow meter 22, second flowmeter 23 all adopt electronic flow-meter, can make that like this metering is more accurate.
When adopting this inductive coupling plasma emission spectrograph to detect organism, Ar gas enters the outer quartz ampoule of torch pipe 24 by threeway, and Ar gas makes plasma leave outer quartz ampoule inwall as cold gas, burns quartz ampoule to avoid it.Regulate transfer valve 25 simultaneously, make oxygen enter the middle level quartz ampoule of torch pipe 24, the uncombined carbon that at high temperature produces when organism just is easy to be become gas by dioxygen oxidation like this, just can not form the carbon deposition, thereby can guarantee that the stable operation of plasma and spectrum correctly measures at the mouth of pipe of torch pipe 24.
More than inductive coupling plasma emission spectrograph that the utility model embodiment is provided be described in detail; for one of ordinary skill in the art; thought according to the utility model embodiment; part in specific embodiments and applications all can change; in sum; this description should not be construed as restriction of the present utility model, and all any changes of being made according to the utility model design philosophy are all within protection domain of the present utility model.
Claims (2)
1. inductive coupling plasma emission spectrograph, comprise radio-frequency generator, induction coil, the torch pipe, air supply system and sample drawing-in system, described torch Guan Yousan layer concentric quartz tubes formed, described air supply system comprises a threeway, described threeway air intake opening is connected with the Ar source of the gas, a gas outlet of described threeway is communicated with the outer quartz ampoule of described torch pipe by the first flow meter, it is characterized in that: described air supply system also comprises a transfer valve, an air intake opening of described transfer valve is communicated with another gas outlet of described threeway, another air intake opening of described transfer valve is communicated with oxygen source, and the gas outlet of described transfer valve is communicated with the middle level quartz ampoule of described torch pipe by second flowmeter.
2. inductive coupling plasma emission spectrograph according to claim 1 is characterized in that: described first flow meter, second flowmeter are electronic flow-meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828552U CN201628687U (en) | 2009-12-24 | 2009-12-24 | Inductively-coupled plasma emission spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828552U CN201628687U (en) | 2009-12-24 | 2009-12-24 | Inductively-coupled plasma emission spectrometer |
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| Publication Number | Publication Date |
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| CN201628687U true CN201628687U (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202828552U Expired - Fee Related CN201628687U (en) | 2009-12-24 | 2009-12-24 | Inductively-coupled plasma emission spectrometer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604940A (en) * | 2013-11-26 | 2014-02-26 | 福州大学 | Inductively coupled plasma-atomic emission spectrometry/mass spectrometry (ICP-AES/ MS) switching-free type organic sampling device |
| CN114324307A (en) * | 2021-12-20 | 2022-04-12 | 杭州谱育科技发展有限公司 | Analysis method based on inductively coupled plasma technology |
-
2009
- 2009-12-24 CN CN2009202828552U patent/CN201628687U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604940A (en) * | 2013-11-26 | 2014-02-26 | 福州大学 | Inductively coupled plasma-atomic emission spectrometry/mass spectrometry (ICP-AES/ MS) switching-free type organic sampling device |
| CN114324307A (en) * | 2021-12-20 | 2022-04-12 | 杭州谱育科技发展有限公司 | Analysis method based on inductively coupled plasma technology |
| CN114324307B (en) * | 2021-12-20 | 2024-02-13 | 杭州谱育科技发展有限公司 | Analysis method based on inductively coupled plasma technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20101224 |