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Sample preparation method for detecting high-purity silver sample through glow discharge mass spectrometry

A technology of glow discharge mass spectrometry and samples, which is applied in the field of sample preparation for detecting high-purity silver samples by glow discharge mass spectrometry, can solve problems such as undisclosed silver sample preparation methods, achieve short detection time, high detection efficiency, and avoid the introduction of impurities Effect

Pending Publication Date: 2020-11-20
KONFOONG MATERIALS INTERNATIONAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the sample preparation method for silver samples is not disclosed in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The present embodiment provides a sample preparation method for detecting a high-purity silver sample by glow discharge mass spectrometry, the length of the high-purity silver sample is 6mm, and the width is 3mm;

[0039] The sample preparation method includes: sequentially pickling the high-purity silver sample, first rinsing, second rinsing, drying and sample pressing to obtain the silver sample to be detected;

[0040] Wherein, the pickling agent of the pickling is nitric acid, and the time of each pickling is 3 minutes, and is carried out 3 times; hydrofluoric acid is added during the last 1 minute of the last pickling; the cleaning agent of the first rinsing is water , the time of each rinsing is 4min, and is carried out 3 times; the cleaning agent of the second rinsing is ethanol, and the time of each rinsing is 2min, and is carried out 1 time; the drying method is drying; the drying time The sample pressing process is to place the dried 2 silver samples on high-p...

Embodiment 2

[0043] The present embodiment provides a sample preparation method for detecting high-purity silver samples by glow discharge mass spectrometry, the length of the high-purity silver samples is 8mm, and the width is 4mm;

[0044] The sample preparation method includes: sequentially pickling the high-purity silver sample, first rinsing, second rinsing, drying and sample pressing to obtain the silver sample to be detected;

[0045] Wherein, the pickling agent of the pickling is nitric acid, and the time of each pickling is 2min, and is carried out 3 times; hydrofluoric acid is added during the last 1min of the last pickling; the cleaning agent of the first rinsing is water , the time of each rinsing is 3min, and is carried out 3 times; the cleaning agent of the second rinsing is ethanol, and the time of each rinsing is 1min, and is carried out 2 times; the drying method is drying; the drying time The sample pressing process is to place the dried 2 silver samples on high-purity in...

Embodiment 3

[0048] The present embodiment provides a sample preparation method for detecting a high-purity silver sample by glow discharge mass spectrometry, the length of the high-purity silver sample is 7mm, and the width is 5mm;

[0049] The sample preparation method includes: sequentially pickling the high-purity silver sample, first rinsing, second rinsing, drying and sample pressing to obtain the silver sample to be detected;

[0050] Wherein, the pickling agent of the pickling is nitric acid, and the time of each pickling is 4min, which is carried out 3 times; hydrofluoric acid is added during the last 1min of the last pickling; the cleaning agent of the first rinsing is water , the time of each rinsing is 5min, and is carried out 5 times; the cleaning agent of the second rinsing is ethanol, and the time of each rinsing is 3min, and is carried out 4 times; the drying method is drying; the drying time is 9min ; The sample pressing process is to place the dried 2 silver samples on hi...

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Abstract

The invention relates to a sample preparation method for detecting a high-purity silver sample through glow discharge mass spectrometry. The length of the high-purity silver sample is 6-8 mm, and thewidth of the high-purity silver sample is 3-5 mm. The sample preparation method comprises the steps that the high-purity silver sample is sequentially subjected to acid pickling, first rinsing, secondrinsing, drying and sample pressing treatment, and a to-be-detected silver sample is obtained. By designing acid pickling in the sample preparation process, glow discharge mass spectrometry detectionof a fine silver sample is realized, introduction of impurities is avoided, the detection efficiency is high, and the detection time is short.

Description

technical field [0001] The invention relates to the field of glow discharge mass spectrometry, in particular to a sample preparation method for detecting high-purity silver samples by glow discharge mass spectrometry. Background technique [0002] At present, as a direct analysis technique for solid samples, glow discharge mass spectrometry (GDMS) has been widely used in the analysis of trace and ultra-trace impurities in materials such as high-purity metals and semiconductors. There are still many difficulties. [0003] CN110542604A discloses a method for pre-testing high-purity indium (purity ≥ 99.999%) samples used for glow discharge mass spectrometry detection. First, the high-purity indium to be tested is subjected to ultrasonic corrosion as it is, and then the corroded samples are sequentially Ultrasonic cleaning and drying are carried out, and the dried sample is placed between two non-metallic hard plates, and an external force acts on the upper non-metallic hard pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/32G01N1/34G01N1/44G01N1/28G01N27/68
CPCG01N1/32G01N1/34G01N1/44G01N1/286G01N27/68
Inventor 姚力军边逸军潘杰王学泽张梁
Owner KONFOONG MATERIALS INTERNATIONAL CO LTD
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