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YS/T 872-2023: (Chemical analysis method of gallium Determination of mercury and arsenic content Atomic fluorescence spectrometry)
Status: Valid YS/T 872: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 872-2023 | English | 199 |
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(Chemical analysis method of gallium Determination of mercury and arsenic content Atomic fluorescence spectrometry)
| Valid |
YS/T 872-2023
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| YS/T 872-2013 | English | 279 |
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Methods for chemical analysis gallium. Determination of mercury in industrial gallium. Atomic fluorescence spectrometer method
| Obsolete |
YS/T 872-2013
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PDF similar to YS/T 872-2023
Basic data | Standard ID | YS/T 872-2023 (YS/T872-2023) | | Description (Translated English) | (Chemical analysis method of gallium Determination of mercury and arsenic content Atomic fluorescence spectrometry) | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H12 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 9,974 | | Date of Issue | 2023-12-20 | | Date of Implementation | 2024-07-01 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the determination method of mercury and arsenic content in gallium. This standard is applicable to the determination of mercury and arsenic content in gallium (99.9%��wGa��99.99999%). The mercury content determination range is 0.0040��g/g~15.00��g/g; the arsenic content determination range is 0.0050��g/g~15.00��g/ g. | YS/T 872-2013: Methods for chemical analysis gallium. Determination of mercury in industrial gallium. Atomic fluorescence spectrometer method
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Methods for chemical analysis gallium. Determination of mercury in industrial gallium. Atomic fluorescence spectrometer method
ICS 77.120.99
H12
People's Republic of China Nonferrous Metals Industry Standard
Industrial Chemical analysis of gallium
Determination of mercury content
Atomic Fluorescence Spectrometry
Issued on. 2013-04-25
2013-09-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized.
This standard is drafted by. China Chalco Henan Branch.
Participated in the drafting of this standard. Aluminum Corporation of China Research Institute of Zhengzhou, Henan Nonferrous Metals Geological Survey General Hospital.
The main drafters of this standard. Ai Zhen, Zhao Yawei, Sun Jianfeng, Wang Xiaowen, Zhang to the autumn, following the first quotient, Bai Pengcheng Tibetan Text.
Industrial Chemical analysis of gallium
Determination of mercury content
Atomic Fluorescence Spectrometry
1 Scope
This standard specifies the method for determination of gallium in industrial mercury content.
This standard applies to the determination of gallium industry (99.9% ≤ω (%) ≤99.995%) of the mercury content. Measuring range. 0.05μg/g ~
15μg/g.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents
3 Method summary
The sample with hydrochloric acid, nitric acid is dissolved, under the action of the microwave digestion system, the sample solution is prepared by adding an appropriate amount of potassium dichromate to keep the sample
Product stability, measured by atomic fluorescence spectrometer.
In acidic medium, mercury and boron potassium hydride generation atomic states of mercury vapor.
KBH4 3H2O H = H3BO3 K 8H (nascent hydrogen)
8H Hg2 = Hg ↑ 3H2 ↑ 2H
Excess hydrogen and vapor with a carrier gas (argon) mixing mercury, into the atomizer, the hydrogen and argon is formed under the action of a special ignition device
Argon hydrogen flame, so that analyte atomization. Characteristic lines of mercury emitted by the hollow cathode lamp focus, argon hydrogen flame excited mercury atoms, the original ground state
Son was excited to high energy state, and then by the high-energy state to the ground state, emitting a characteristic wavelength of atomic fluorescence. Fluorescence intensity and concentration of mercury into positive
Ratio, compared with standard series quantitation.
4 Reagents and materials
4.1 deionized water (resistivity > 18MΩ · cm).
4.2 HCl. UP level or sub-boiling distillation purification.
4.3 Nitrate. UP level or sub-boiling distillation purification.
4.4 standard stock solution. According to GB/T 602 standard stock solution preparation of mercury is 1000μg/mL.
4.5 mercury standard solution. Pipette 0.10mL mercury standard stock solution (4.4), placed in 100mL flask, add 10mL of nitric acid (4.3), with
Deionized water (4.1) diluted to the mark, and mix. This solution was mercury 1μg/mL.
4.6 potassium borohydride solution. Weigh 0.25g ~ 20g potassium borohydride (excellent pure), was dissolved in a solution of potassium hydroxide (5g/L) in deionized water
(4.1) and dilute to 500mL, the solution was boron potassium hydride 0.5g/L ~ 40g/L.
4.7 carrier. 4% HNO3 (volume fraction).
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