CN2876767Y - Vapour absorption type spectrophotometer - Google Patents
Vapour absorption type spectrophotometer Download PDFInfo
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- CN2876767Y CN2876767Y CN 200620088851 CN200620088851U CN2876767Y CN 2876767 Y CN2876767 Y CN 2876767Y CN 200620088851 CN200620088851 CN 200620088851 CN 200620088851 U CN200620088851 U CN 200620088851U CN 2876767 Y CN2876767 Y CN 2876767Y
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- absorption spectrophotometer
- gas
- sample
- generating device
- flow injection
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Abstract
The utility model provides a vapor absorption spectrophotometer which is to solve the following art problem: as a spectroscopic instrument, an atomic absorption spectrophotometer is confronted with a critical problem how to transform a test piece into a ground state to form finally ground-state atom after evaporation and incineration; take for example a method of flame atomization, which has the defects of creating background absorption to generating interference, thereby providing poor sensitivity. The utility model has the following key points: a flow injection vapor generation device is composed of a delivery pump, a reactor, a gas liquid separator in sequence; a test piece and a chemical reducer is transported via the delivery pump to the reactor to mix and generate gas containing the substance of the test piece. Then the gas containing the substance of the test piece will pass through the gas liquid separator and enter an electro thermal quartz tube of the atomic absorption spectrophotometer. The utility model has the active effects of little background absorption, little interference, sensitivity provided three orders of magnitude higher than that of the flame atomizer, and at the same time expansion of measurement range of substances.
Description
Technical field
The utility model relates to a kind of trace element and compound test analytical instrument, particularly a kind of with measured matter, it comprises hydride (mercury, arsenic, selenium, lead, tin, antimony, germanium, tellurium), chloride, sulfide, nitrate nitrogen, nitrite nitrogen, ammonia nitrogen, kjeldahl nitrogen and sulfate etc., carries out atom or molecule absorption analysis again after vaporized.
Background technology
Atomic absorption spectrophotometer (AAS) is a kind of spectral instrument, the characteristic spectrum that cathode modulation sends in will be to instrument when tested sample is converted into ground state atom produces and absorbs, the degree of this absorption and the concentration of sample have relation, the situation of change of spectrum just can be calculated the concentration of sample after through monochromator splitting, opto-electronic conversion, signal Processing.
The problem of a key is how sample to be converted into ground state sample evaporation, ashing in instrument, forms ground state atom at last.The method of flame atomization for example, measure some trace elements in this way and have easy to operate, measuring accuracy advantages of higher, but making the defective of elements such as testing mercury, arsenic, selenium, lead, tin, antimony, germanium, tellurium in this way is that sensitivity is relatively poor, and particularly the method for flame atomization can't be tested materials such as chloride, sulfide, nitrate nitrogen, nitrite nitrogen, ammonia nitrogen, kjeldahl nitrogen and sulfate.
Summary of the invention
The purpose of this utility model is to provide a kind of steam absorption spectrophotometer that can avoid above-mentioned deficiency.
The purpose of this utility model is achieved in that the gas generation of measured matter being carried out sample material in steam generating device, again this gas is sent in the electrothermal quartz tube in the atomic absorption spectrophotometer (AAS), this atomic absorption spectrophotometer (AAS) can be measured the atom or the molecule absorption signal of gas, is converted to corresponding sample solution concentration value.
Formation of the present utility model is: it has atomic absorption spectrophotometer (AAS), it is characterized in that: it also has the flow injection steam generating device, the flow injection steam generating device is by discharge pump, reactor, gas-liquid separator is formed successively, sample and chemical reducing agent are transported to through pump and produce the gas that contains this sample material after reactor mixes, through gas-liquid separator, the gas that will contain this sample material is sent in the electrothermal quartz tube in the atomic absorption spectrophotometer (AAS), this atomic absorption spectrophotometer (AAS) can be measured the atom or the molecule absorption signal of gas, is converted to corresponding value.
Owing to comprise atomic absorption spectrophotometer (AAS) in the utility model, use so it still can be used as atomic absorption spectrophotometer (AAS).
The utility model is compared its advantage with the prior art scheme:
1, it can realize materials such as chloride, sulfide, nitrate nitrogen, nitrite nitrogen, ammonia nitrogen, kjeldahl nitrogen and sulfate are tested.
2, it to element tests such as mercury, arsenic, selenium, lead, tin, antimony, germanium, telluriums the time remolding sensitivity flame atomizer height three orders of magnitude.
3, it also can realize atomic absorption formula spectrum test.
Description of drawings
Further specify the utility model below in conjunction with accompanying drawing.
Fig. 1 is the atomic absorption spectrophotometer (AAS) system diagram.
Fig. 2 is interrupted flow injection steam generating device synoptic diagram.
Fig. 3 is an order flow injection steam generating device synoptic diagram.
Embodiment
Referring to Fig. 1, atomic absorption spectrophotometer (AAS) is made up of cathode lamp source 7, lens 6, electrothermal quartz tube 5, monochromator 4, opto-electronic conversion 3, signal Processing 2 and data presentation 1, and it also has interrupted flow injection steam generating device or order flow injection steam generating device.
Referring to Fig. 2, interrupted flow injection steam generating device is made up of peristaltic pump 8, mixing module 9 and gas-liquid separator 10, sample S and reductive agent R send in the mixing module through peristaltic pump and react, through gas-liquid separator, the gas Y that will contain this sample material sends in the electrothermal quartz tube in the atomic absorption spectrophotometer (AAS), this atomic absorption spectrophotometer (AAS) can be measured the molecule absorption signal of gas, is converted to corresponding value.
Referring to Fig. 3, order flow injection steam generating device, one the tunnel is followed successively by discharge pump 12, sampling ring 14, multi-position valve 15, several sample hoses 16 place 18 li of auto injection sample disc, by conduit 17 with the sample delivery in the sample hose to multi-position valve, another road is a reductive agent pipe 21, discharge pump 22 and two-position valve 20, two-way is intersected in reactor 19, through gas-liquid separator 23, the gas that will contain this sample material is sent in the electrothermal quartz tube in the atomic absorption spectrophotometer (AAS), this atomic absorption spectrophotometer (AAS) can be measured the molecule absorption signal of gas, is converted to corresponding value.
The 11st, the cleaning fluid bottle, the 13rd, two-position valve, the 24th, peristaltic pump is carried waste liquid.
Claims (3)
1, a kind of steam absorption spectrophotometer, it has atomic absorption spectrophotometer (AAS), it is characterized in that: it also has the flow injection steam generating device, the flow injection steam generating device is made of successively discharge pump, reactor, gas-liquid separator, sample and chemical reducing agent are transported to through pump and produce the gas that contains this sample material after reactor mixes, through gas-liquid separator, the gas that will contain this sample material is sent in the electrothermal quartz tube in the atomic absorption spectrophotometer (AAS).
2, according to the described steam absorption spectrophotometer of claim 1, it is characterized in that: said flow injection steam generating device is interrupted flow injection steam generating device, and it is made up of peristaltic pump, mixing module and gas-liquid separator.
3, according to the described steam absorption spectrophotometer of claim 1, it is characterized in that: said flow injection steam generating device is an order flow injection steam generating device, one the tunnel is followed successively by discharge pump, sampling ring, multi-position valve, several sample hoses place in the auto injection sample disc, by conduit with the sample delivery in the sample hose to multi-position valve, another road is reductive agent pipe, discharge pump and two-position valve, and two-way is intersected in reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088851 CN2876767Y (en) | 2006-01-06 | 2006-01-06 | Vapour absorption type spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088851 CN2876767Y (en) | 2006-01-06 | 2006-01-06 | Vapour absorption type spectrophotometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2876767Y true CN2876767Y (en) | 2007-03-07 |
Family
ID=37820004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620088851 Expired - Fee Related CN2876767Y (en) | 2006-01-06 | 2006-01-06 | Vapour absorption type spectrophotometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2876767Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028174A (en) * | 2013-03-04 | 2014-09-10 | 北京普析通用仪器有限责任公司 | Multi-element chemical steam generating device and method |
| CN110779783A (en) * | 2019-12-10 | 2020-02-11 | 华北电力大学 | Device and method for detecting arsenic in solid sample |
-
2006
- 2006-01-06 CN CN 200620088851 patent/CN2876767Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028174A (en) * | 2013-03-04 | 2014-09-10 | 北京普析通用仪器有限责任公司 | Multi-element chemical steam generating device and method |
| CN104028174B (en) * | 2013-03-04 | 2016-03-23 | 北京普析通用仪器有限责任公司 | The chemical evapn generating means of multielement and method thereof |
| CN110779783A (en) * | 2019-12-10 | 2020-02-11 | 华北电力大学 | Device and method for detecting arsenic in solid sample |
| CN110779783B (en) * | 2019-12-10 | 2021-08-13 | 华北电力大学 | Device and method for detecting arsenic in solid sample |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenyang Huaguang Precision Instrument Co., Ltd. Assignor: Xu Peishi Contract fulfillment period: 2007.2.1 to 2017.2.1 Contract record no.: 2009210000126 Denomination of utility model: Steam absorption spectrophotometer Granted publication date: 20070307 License type: Exclusive license Record date: 20090413 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.2.1 TO 2017.2.1; CHANGE OF CONTRACT Name of requester: SHENYANG HUAGUANG PRECISE EQUIPMENT CO., LTD. Effective date: 20090413 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070307 Termination date: 20100208 |