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GB/T 36590-2018: Method for chemical analysis of high purity silver -- Determination of trace impurity elements contents -- Glow discharge mass spectrometry
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 36590-2018 | English | 119 |
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Method for chemical analysis of high purity silver -- Determination of trace impurity elements contents -- Glow discharge mass spectrometry
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GB/T 36590-2018
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Basic data | Standard ID | GB/T 36590-2018 (GB/T36590-2018) | | Description (Translated English) | Method for chemical analysis of high purity silver -- Determination of trace impurity elements contents -- Glow discharge mass spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H15 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 6,659 | | Date of Issue | 2018-09-17 | | Date of Implementation | 2019-06-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 36590-2018: Method for chemical analysis of high purity silver -- Determination of trace impurity elements contents -- Glow discharge mass spectrometry
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Method for chemical analysis of high purity silver - Determination of trace impurities elements contents - Glow discharge mass spectrometry
ICS 77.120.99
H15
National Standards of People's Republic of China
High purity silver chemical analysis method
Determination of trace impurity elements
Glow discharge mass spectrometry
Published on.2018-09-17
2019-06-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the China Nonferrous Metals Industry Association.
This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243).
This standard is drafted by. National Standard (Beijing) Inspection and Certification Co., Ltd.
Participated in the drafting of this standard. Anhui Huajing Microelectronics Materials Technology Co., Ltd., Jinchuan Group Co., Ltd., Emeishan City, half
High Purity Materials Co., Ltd.
The main drafters of this standard. Li Na, Zhang Jinxi, Zhang Ling, Liu Ying, Liu Hong, Li Aizhen, Yang Fuguang, Zhang Xiao, Cheng Ping, Qiu Ping, Sun Ping, and Zhan Ke.
High purity silver chemical analysis method
Determination of trace impurity elements
Glow discharge mass spectrometry
1 Scope
This standard specifies the method for determination of trace impurity elements in high purity silver.
This standard applies to the determination of trace impurity elements in high purity silver. The measurement range of each element is 0.001 μg/g to 5.0 μg/g.
2 Principle of the method
The sample is used as a cathode for glow discharge, and the surface atoms are sputtered and separated from the sample into the glow discharge plasma, and then ionized.
It was introduced into a mass spectrometer for measurement. Integrate the corresponding peaks with the preset number of scan points and integration time at each element.
The resulting area is the peak intensity. In the absence of a standard sample, the computer automatically counts according to the “typical relative sensitivity factor” in the instrument software.
Calculate the mass fraction of each element; when there is a standard sample, it needs to pass the same analysis conditions, ion source structure and measurement as the sample to be tested.
Under the test conditions, the standard sample is independently determined to obtain the relative sensitivity factor, and the relative sensitivity factor is used to calculate the quality of each element.
fraction.
3 reagents and materials
3.1 Anhydrous ethanol.
3.2 Nitric acid (1 1).
3.3 Argon (φ ≥ 99.999%).
3.4 Mass calibration reference sample. The Glow Discharge Mass Spectrometer should be used with the instrument's own quality calibration sample if conditions permit.
Accurate quality correction.
3.5 Unless otherwise stated, the reagents used in the tests were of excellent grade; the water used was primary water with a resistivity of ≥ 18 MΩ·cm-1.
4 instruments
4.1 Glow Discharge Mass Spectrometer
The resolution in medium resolution mode can reach 3000~4000, and the resolution in high resolution mode can reach 9000~10000.
The isotope and resolution are shown in Table 1. The peak intensity of the isotope 107Ag is required to be not less than 5 × 109 cps when measured, and the peak shape is consistent.
Resolution requirements.
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