CN107677617A - The method of silver content in Flame Atomic Absorption Spectrometry Determination product indium - Google Patents
The method of silver content in Flame Atomic Absorption Spectrometry Determination product indium Download PDFInfo
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- CN107677617A CN107677617A CN201710692218.1A CN201710692218A CN107677617A CN 107677617 A CN107677617 A CN 107677617A CN 201710692218 A CN201710692218 A CN 201710692218A CN 107677617 A CN107677617 A CN 107677617A
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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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/3103—Atomic absorption analysis
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Abstract
The method that the present invention discloses silver content in a kind of Flame Atomic Absorption Spectrometry Determination product indium, comprises the following steps：The first step, 2.000 grams of product indium samples are weighed in 150ml beaker, add 15ml hydrochloric acid, shake beaker, both is uniformly mixed；Second step, by beaker on electric furnace with 400 ~ 500 DEG C heating for dissolving said mixtures；3rd step, add 5ml nitric acid and continue to dissolve, and the solution in beaker is evaporated；4th step, wall of cup is purged using hydrochloric acid solution, the volume ratio of hydrochloric acid and water is 1 in hydrochloric acid solution:9, and beaker is dissolved by heating to obtained solution in 400 ~ 500 degree on electric furnace, present invention interference is few, and measurement accuracy is high, simple to operate, efficiency high, and cost is low.
Description
Technical field
The present invention relates to metallic element analysis technical field, specifically a kind of Flame Atomic Absorption Spectrometry Determination product indium
The method of middle silver content.
Background technology
Indium is a kind of widely used rare metal, be used primarily in semiconductor, electronic device, transparent conducting coating,
The fields such as fluorescent material, metallorganic.The application field of indium is more using the indium of high-purity as raw material, and indium does not have independent indium
Ore deposit, extraction and purification mainly from metallurgical and chemical industry byproduct, thus impurity element is more, including bismuth, cadmium, nickel, iron,
Silver, lead, tin, thallium etc., to ensure the quality of product indium, it is necessary to be measured to each impurity element, to meet to require.
The principle of flame atomic absorption spectrometry is to launch some strength and wavelength by element hollow cathode lamp to be measured
The light of characteristic spectral line, when it is by ground state atom steam containing element to be measured, atom vapor to the light absorbs of this wavelength,
For absorbed characteristic spectral line light be irradiated to after monochromator is divided on photoelectric detector be detected, according to characteristic spectral line light intensity
The content of element to be measured in moral full pattern can be surveyed by spending absorbed degree.Metallic element is measured also using this method at present
More in the presence of disturbing, precision is low, operates the shortcomings that relatively complicated.
The content of the invention
The technical problems to be solved by the invention are：Silver in a kind of Flame Atomic Absorption Spectrometry Determination product indium is provided to contain
The method of amount, this method interference is few, and measurement accuracy is high, simple to operate, efficiency high, and cost is low.
The technical solution adopted in the present invention is：Silver content in a kind of Flame Atomic Absorption Spectrometry Determination product indium is provided
Method, comprise the following steps：
The first step, 2.000 grams of product indium samples are weighed in 150ml beaker, add 15ml hydrochloric acid, shake beaker, make both
Uniformly mixing；
Second step, by beaker on electric furnace with 400 ~ 500 DEG C heating for dissolving said mixtures；
3rd step, add 5ml nitric acid and continue to dissolve, and the solution in beaker is evaporated；
4th step, wall of cup is purged using hydrochloric acid solution, the volume ratio of hydrochloric acid and water is 1 in hydrochloric acid solution:9, and by beaker in electricity
400 ~ 500 degree dissolve by heating obtained solution on stove；
5th step, treat that the solution in the beaker of previous step is cooled to room temperature, move into 25ml or 50ml volumetric flask, use hydrochloric acid
Solution constant volume, the volume ratio of hydrochloric acid and water is 1 in hydrochloric acid solution:9；
6th step, using Flame Atomic Absorption Spectrometry Determination, measure wavelength is 328.0nm, with Air-acetylene Flame, uses salt
The volume ratio 2 of acid and water:98 hydrochloric acid solution returns to zero to absorbance, while enters line blank test, and the scope of working curve is 0-5
µg/ml。
The silver content in product indium is measured using this method, interference is small, and sensitivity is high, and measurement accuracy is high, behaviour
Make simple.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.
The method of silver content, comprises the following steps in Flame Atomic Absorption Spectrometry Determination product indium of the present invention：
The first step, 2.000 grams of product indium samples are weighed in 150ml beaker, add 15ml hydrochloric acid, shake beaker, make both
Uniformly mixing；
Second step, by beaker on electric furnace with 400 ~ 500 DEG C heating for dissolving said mixtures；
3rd step, add 5ml nitric acid and continue to dissolve, and the solution in beaker is evaporated；
4th step, wall of cup is purged using hydrochloric acid solution, the volume ratio of hydrochloric acid and water is 1 in hydrochloric acid solution:9, and by beaker in electricity
400 ~ 500 degree dissolve by heating obtained solution on stove；
5th step, treat that the solution in the beaker of previous step is cooled to room temperature, move into 25ml or 50ml volumetric flask, use hydrochloric acid
Solution constant volume, the volume ratio of hydrochloric acid and water is 1 in hydrochloric acid solution:9；
6th step, using Flame Atomic Absorption Spectrometry Determination, measure wavelength is 328.0nm, with Air-acetylene Flame, uses salt
The volume ratio 2 of acid and water:98 hydrochloric acid solution returns to zero to absorbance, while enters line blank test, and the scope of working curve is 0-5
µg/ml。
The present invention in the specific implementation, using flame atomic absorption spectrometry surveyed according to a conventional method by the drafting of working curve
The other specification of timing is carried out by prior art, and hydrochloric acid of the present invention is top grade pure hydrochloric acid.
Embodiments of the invention are described in detail above, but the content is only presently preferred embodiments of the present invention,
It is not to be regarded as the practical range for limiting the present invention.All equivalent changes made according to the scope of the invention and improvement etc., all should
Still belong within this patent covering scope.
Claims (1)
1. a kind of method of silver content in Flame Atomic Absorption Spectrometry Determination product indium, it is characterised in that comprise the following steps：
The first step, 2.000 grams of product indium samples are weighed in 150ml beaker, add 15ml hydrochloric acid, shake beaker, make both
Uniformly mixing；
Second step, by beaker on electric furnace with 400 ~ 500 DEG C heating for dissolving said mixtures；
3rd step, add 5ml nitric acid and continue to dissolve, and the solution in beaker is evaporated；
4th step, wall of cup is purged using hydrochloric acid solution, the volume ratio of hydrochloric acid and water is 1 in hydrochloric acid solution:9, and by beaker in electricity
400 ~ 500 degree dissolve by heating obtained solution on stove；
5th step, treat that the solution in the beaker of previous step is cooled to room temperature, move into 25ml or 50ml volumetric flask, use hydrochloric acid
Solution constant volume, the volume ratio of hydrochloric acid and water is 1 in hydrochloric acid solution:9；
6th step, using Flame Atomic Absorption Spectrometry Determination, measure wavelength is 328.0nm, with Air-acetylene Flame, uses salt
The volume ratio 2 of acid and water:98 hydrochloric acid solution returns to zero to absorbance, while enters line blank test, and the scope of working curve is 0-5
µg/ml。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710692218.1A CN107677617A (en) | 2017-08-14 | 2017-08-14 | The method of silver content in Flame Atomic Absorption Spectrometry Determination product indium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710692218.1A CN107677617A (en) | 2017-08-14 | 2017-08-14 | The method of silver content in Flame Atomic Absorption Spectrometry Determination product indium |
Publications (1)
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|---|---|
| CN107677617A true CN107677617A (en) | 2018-02-09 |
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ID=61134270
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| CN201710692218.1A Pending CN107677617A (en) | 2017-08-14 | 2017-08-14 | The method of silver content in Flame Atomic Absorption Spectrometry Determination product indium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883970A (en) * | 2019-03-20 | 2019-06-14 | 兰州金川新材料科技股份有限公司 | The method for quantitatively determining of trace silver foreign matter in a kind of cobalt nickel solution |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499536A (en) * | 2013-09-26 | 2014-01-08 | 苏州国环环境检测有限公司 | Method for measuring indium content in exhaust gas by utilizing flame atomic absorption spectrometry |
-
2017
- 2017-08-14 CN CN201710692218.1A patent/CN107677617A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499536A (en) * | 2013-09-26 | 2014-01-08 | 苏州国环环境检测有限公司 | Method for measuring indium content in exhaust gas by utilizing flame atomic absorption spectrometry |
Non-Patent Citations (2)
| Title |
|---|
| 宋立怀 等: "火焰原子吸收光谱法连续测定矿石中的铜、铅、锌、铁、镍、钴、银", 《科技论坛》 * |
| 张莹: "塞曼火焰原子吸收法直接测定精铟中的微量铊", 《湖南有色金属》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883970A (en) * | 2019-03-20 | 2019-06-14 | 兰州金川新材料科技股份有限公司 | The method for quantitatively determining of trace silver foreign matter in a kind of cobalt nickel solution |
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Application publication date: 20180209 |
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