CN102507536A - Method for analyzing trace element capable generating hydride gas through hydrogenation - Google Patents
Method for analyzing trace element capable generating hydride gas through hydrogenation Download PDFInfo
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- CN102507536A CN102507536A CN2011103630767A CN201110363076A CN102507536A CN 102507536 A CN102507536 A CN 102507536A CN 2011103630767 A CN2011103630767 A CN 2011103630767A CN 201110363076 A CN201110363076 A CN 201110363076A CN 102507536 A CN102507536 A CN 102507536A
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Abstract
The invention relates to a method for analyzing trace elements capable generating hydride gas through hydrogenation, which adopts an improved atomizing chamber, and includes the following steps; firstly, part of sample solution is pumped to an atomizer through a first peristaltic pump and forms atomized particles in the atomizing chamber under the action of carrier gas; and secondly, the other part of the sample solution is pumped to a hydride gas generator through a second peristaltic pump, and at the same time, the potassium borohydride solution is pumped to a hydride generator through a third peristaltic pump, reaction is performed between the sample solution and the potassium borohydride solution in the hydride gas generator to generate hydride gas, the generated hydride gas enters the atomizing chamber through a hydrogenation reactant inlet, and the hydride gas and the atomized particles enter a torch pipe together to from a torch pipe interface for excitation in plasma flame. The method provided by the invention can be used for measuring elements of regular content, and can be used for accurately and conveniently measuring the trace elements at the same time (such as arsenic, tin and antimony).
Description
Technical field
The present invention relates to the ICP spectral analysis, be specifically related to a kind of method that can generate the trace element (for example arsenic, tin and antimony) of hydride gas with the ICP spectrometer analysis through hydrogenation.
Background technology
At present, known ICP spray chamber has only the interface of a plug in atomizer, through atomizer sample solution is become vaporific gasoloid and imports spray chamber; The logical again torch pipe that gets into after plasma flare excites, is measured line strength of element; Thereby determine the content of various elements, because the sensitivity of element is low, some trace elements can't accurately be measured; Like elements such as arsenic, tin, antimony in the iron and steel; Content is all below 0.01%, the content of antimony even below 0.001%, and traditional atomization can't detect.
Summary of the invention
Can't accurately measure the deficiency of trace element in order to solve traditional spray chamber, the present invention provides a kind of analysis can generate the method for the trace element (for example arsenic, tin and antimony) of hydride gas through hydrogenation.This method can not only be measured the element of customary amount, and can accurately also measure trace element such as arsenic, tin and the antimony that can generate hydride gas through hydrogenation easily.
The technical scheme that technical matters adopted that the present invention solves above-mentioned proposition is: a kind of analysis can generate the method for the trace element of hydride gas through hydrogenation; It is characterized in that: adopt the ICP spectrometer analysis; The employed spray chamber of the sampling system of this ICP spectrometer is on conventional spray chamber, to increase a hydrogenation thing inlet; This spray chamber is provided with atomizer jack, hydrogenation thing inlet, torch interface tube and waste liquid mouth, and the employed atomizer of sampling system inserts in the atomizer jack of this spray chamber; These method concrete steps are following:
(1) through first peristaltic pump a part of sample solution is pumped in the atomizer, under the carrier gas effect, in spray chamber, forms vaporific particle;
(2) through second peristaltic pump another part sample solution is pumped in the hydride gas generator; Through the 3rd peristaltic pump solution of potassium borohydride is pumped in the hydride generator simultaneously; Thereby sample solution and solution of potassium borohydride generation hydrogenation generate hydride gas in the hydride gas generator; The hydride gas that generates gets into spray chamber through hydrogenation thing inlet; This hydride gas and vaporific particle together get into the torch pipe through the torch interface tube and in plasma flame, excite subsequently; Stable spectral intensity be can record, thereby the element and the content that can generate the trace element of hydride gas of various customary amounts measured simultaneously through hydrogenation.
Preferably, said can be arsenic, tin and antimony through the trace element that hydrogenation generates hydride gas.
In technique scheme; With part sample solution and solution of potassium borohydride reaction; The hydride gas (for example arsenic hydride, tin hydrogen and antimonous hydride gas) that generates is imported in the spray chamber; This suitable enrichment process can make the intensity of these trace elements be greatly improved, thereby reach the purpose of measuring trace elements such as customary amount element manganese, silicon, phosphorus, chromium, nickel, molybdenum, copper and arsenic, tin, antimony in the iron and steel simultaneously.
The invention has the beneficial effects as follows; Only do simple modifications on the spray chamber basis of ICP spectrometer sampling system in the prior art; Can in the element of measuring customary amount, accurately and easily measure the trace element (for example arsenic, tin and antimony) that can generate hydride gas through hydrogenation.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the employed improvement spray chamber of a method of the present invention synoptic diagram.
Fig. 2 is the longitudinal profile structural map of improvement spray chamber shown in Figure 1.
Fig. 3 is the embodiments of the invention process flow diagrams.
1. atomizer jacks among the figure, 2. hydrogenation thing inlet, 3. torch interface tube, 4. waste liquid mouth; 5. atomizer, 6. the 3rd peristaltic pump, 7. hydride gas generator, 8. solution of potassium borohydride; 9. sample solution, 10. carrier gas inlet, 11. first peristaltic pumps, 12. second peristaltic pumps.
Embodiment
With reference to figure 3, further describe the present invention with a concrete embodiment.A kind of method of analyzing trace element arsenic, tin and antimony; It is characterized in that: adopt the ICP spectrometer analysis; The employed spray chamber of the sampling system of this ICP spectrometer is on conventional spray chamber, to increase a hydrogenation thing inlet; This spray chamber is provided with atomizer jack, hydrogenation thing inlet, torch interface tube and waste liquid mouth, and the employed atomizer of sampling system inserts in the atomizer jack of this spray chamber; These method concrete steps are following:
(1) through first peristaltic pump a part of sample solution is pumped in the atomizer, under the carrier gas effect, in spray chamber, forms vaporific particle;
(2) through second peristaltic pump another part sample solution is pumped in the hydride gas generator; Through the 3rd peristaltic pump solution of potassium borohydride is pumped in the hydride generator simultaneously; Thereby sample solution and solution of potassium borohydride generation hydrogenation generate arsenic hydride, tin hydrogen and antimonous hydride gas in the hydride gas generator; These gases get into spray chamber through hydrogenation thing inlet; These gases and vaporific particle together get into the torch pipe through the torch interface tube and in plasma flame, excite subsequently, can record stable spectral intensity, thereby measure the element of various customary amounts and the content of trace element arsenic, tin and antimony simultaneously.
Though partly just list the method for having lifted in embodiment of the present invention, those skilled in the art should understand that above-mentioned analytical approach obviously is applicable to the trace element analysis that can generate hydride gas through hydrogenation with ICP spectrometer analysis trace element arsenic, tin and antimony.
Claims (2)
1. an analysis can be passed through the method that hydrogenation generates the trace element of hydride gas; It is characterized in that: adopt the ICP spectrometer analysis; The employed spray chamber of the sampling system of this ICP spectrometer is on conventional spray chamber, to increase a hydrogenation thing inlet; This spray chamber is provided with atomizer jack, hydrogenation thing inlet, torch interface tube and waste liquid mouth, and the employed atomizer of sampling system inserts in the atomizer jack of this spray chamber; These method concrete steps are following:
(1) through first peristaltic pump a part of sample solution is pumped in the atomizer, under the carrier gas effect, in spray chamber, forms vaporific particle;
(2) through second peristaltic pump another part sample solution is pumped in the hydride gas generator; Through the 3rd peristaltic pump solution of potassium borohydride is pumped in the hydride generator simultaneously; Thereby sample solution and solution of potassium borohydride generation hydrogenation generate hydride gas in the hydride gas generator; The hydride gas that generates gets into spray chamber through hydrogenation thing inlet; This hydride gas and vaporific particle together get into the torch pipe through the torch interface tube and in plasma flame, excite subsequently; Stable spectral intensity be can record, thereby the element and the content that can generate the trace element of hydride gas of various customary amounts measured simultaneously through hydrogenation.
2. can generate the method for the trace element of hydride gas through hydrogenation according to the analysis of claim 1, said can be arsenic, tin and antimony through the trace element that hydrogenation generates hydride gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103630767A CN102507536A (en) | 2011-11-16 | 2011-11-16 | Method for analyzing trace element capable generating hydride gas through hydrogenation |
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| CN2011103630767A CN102507536A (en) | 2011-11-16 | 2011-11-16 | Method for analyzing trace element capable generating hydride gas through hydrogenation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103364393A (en) * | 2013-07-10 | 2013-10-23 | 中国科学院生态环境研究中心 | Atomizer of atomic emission spectroscopy of inductively coupled plasma and measurement method |
| CN104236966A (en) * | 2013-06-21 | 2014-12-24 | 北京服装学院 | Method for detecting content of extractable arsenic in textile |
| CN110806384A (en) * | 2019-12-06 | 2020-02-18 | 天津师范大学 | Sample introduction device of analytical instrument and use method |
| CN110865068A (en) * | 2018-08-28 | 2020-03-06 | 中国科学院兰州化学物理研究所 | High ionization energy element sampling system of inductively coupled plasma emission spectrometer |
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| CN201628684U (en) * | 2009-12-24 | 2010-11-10 | 江苏天瑞仪器股份有限公司 | Atomizing chamber of sampling system of inductively coupled plasma (ICP) spectrometer |
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| CN87101801A (en) * | 1986-03-18 | 1987-10-07 | 株式会社岛津制作所 | The high-frequency induction coupling plasma analytic method |
| CN87215047U (en) * | 1987-11-09 | 1988-07-13 | 北京杨子江光学技术服务公司 | Upright apparatus for atomizing system |
| CN2064508U (en) * | 1989-12-05 | 1990-10-24 | 广东工学院 | Solution guiding system with minor memorizing effect |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236966A (en) * | 2013-06-21 | 2014-12-24 | 北京服装学院 | Method for detecting content of extractable arsenic in textile |
| CN103364393A (en) * | 2013-07-10 | 2013-10-23 | 中国科学院生态环境研究中心 | Atomizer of atomic emission spectroscopy of inductively coupled plasma and measurement method |
| CN110865068A (en) * | 2018-08-28 | 2020-03-06 | 中国科学院兰州化学物理研究所 | High ionization energy element sampling system of inductively coupled plasma emission spectrometer |
| CN110806384A (en) * | 2019-12-06 | 2020-02-18 | 天津师范大学 | Sample introduction device of analytical instrument and use method |
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Application publication date: 20120620 |