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YS/T 990.8-2014: Methods for chemical analysis of copper matte. Part 8: Determination of arsenic content. Hydride generation-atomic fluorescence spectrometry, silver diethyldithiocarbamate spectrophotometry and potassium bromate titrimetry
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Methods for chemical analysis of copper matte. Part 8: Determination of arsenic content. Hydride generation-atomic fluorescence spectrometry, silver diethyldithiocarbamate spectrophotometry and potassium bromate titrimetry
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YS/T 990.8-2014
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Basic data | Standard ID | YS/T 990.8-2014 (YS/T990.8-2014) | | Description (Translated English) | Methods for chemical analysis of copper matte. Part 8: Determination of arsenic content. Hydride generation-atomic fluorescence spectrometry, silver diethyldithiocarbamate spectrophotometry and potassium bromate titrimetry | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.30 | | Word Count Estimation | 15,169 | | Date of Issue | 10/14/2014 | | Date of Implementation | 4/1/2015 | | Regulation (derived from) | People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180) | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This Standard specifies the method for the determination of arsenic content copper matte. This section applies to the determination of copper ice arsenic content. 1 measuring range of 0.010% to 0.20%; Tier 2 measurement ranges from 0.010% to 0.20%; Tier 3 | YS/T 990.8-2014: Methods for chemical analysis of copper matte. Part 8: Determination of arsenic content. Hydride generation-atomic fluorescence spectrometry, silver diethyldithiocarbamate spectrophotometry and potassium bromate titrimetry
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Methods for chemical analysis of copper matte Part 8. Determination of arsenic content Hydride generation-atomic fluorescence spectrometry, silver diethyldithiocarbamate spectrophotometry and potassium bromate titrimetry
ICS 77.120.30
H13
People's Republic of China Nonferrous Metals Industry Standard
Matte chemical analysis
Part 8. Determination of arsenic content
Hydride generation - atomic fluorescence spectrometry,
Diethyl dithiocarbamate spectrophotometry silver
And potassium bromate titration
Part 8. Determinationofarseniccontent-
Issued on. 2015-04-01 2014-10-14 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 990 "Methods for chemical analysis of copper matte" is divided into 18 parts.
--- Part 1. Determination of copper content iodometry;
--- Part 2. Determination of gold and silver atomic absorption spectroscopy and fire assay;
--- Part 3. Determination of sulfur content - Gravimetric method and combustion titration method;
--- Part 4. Determination of the amount of bismuth atomic absorption spectrometry;
--- Part 5. Determination of the amount of fluorine ion selective electrode method;
--- Part 6. Determination of lead content - Atomic absorption spectrometry and Na2EDTA titration;
--- Part 7. Determination of cadmium content - Atomic absorption spectrometry;
--- Part 8. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry, diethyl dithiocarbamate spectrophotometry silver
And potassium bromate titration;
--- Part 9. Determination of iron content dichromate method;
--- Part 10. Determination of silicon dioxide content molybdenum blue spectrophotometric method and silicon potassium fluoride titration;
--- Part 11. Determination of the amount of nickel atom absorption spectrometry;
--- Part 12. Determination of the amount of chromium oxide of aluminum Azure S Spectrophotometry;
--- Part 13. Determination of magnesium oxide content - Atomic absorption spectrometry;
--- Part 14. Determination of the amount of zinc atomic absorption spectrometry and Na2EDTA titration;
--- Part 15. Determination of antimony content - Atomic absorption spectrometry;
--- Part 16. Determination of mercury content - Cold atomic absorption spectrometry;
--- Part 17. Determination of the amount of cobalt atomic absorption spectrometry;
--- Part 18. lead, zinc, nickel, arsenic, bismuth, antimony, calcium, magnesium, cadmium, cobalt content - Inductively coupled plasma atomic emission spectrometry.
This section YS/T Section 8990 of.
This part of arsenic in Method 2 overlapping portion arbitration.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for drafting unit. Zhongtiaoshan Nonferrous Metals Group Co., Ltd. Daye Nonferrous Metals Group Holdings Limited.
Part 1 Drafting Unit. People's Republic of China Tianjin Exit Inspection and Quarantine.
Part 1 participated in the drafting unit. Beijing General Research Institute of Mining and Metallurgy, Baiyin Nonferrous Group Co., Ltd., Guangzhou Nonferrous Metal Research
Institute, People's Republic of China, Ningbo Entry-Exit Inspection and Quarantine Changshu People's Republic of China, People's Republic of China
Nantong CIQ.
This section Method 2 drafting units. Tongling Nonferrous Metals Group Holdings Limited.
This section participated in the drafting Method 2. Yunnan Copper Co., Ltd., Beijing General Research Institute of Mining and Metallurgy, Yanggu Yoshimitsu Copper Co., Ltd.,
Hangzhou Fuchunjiang Smelting Co., Ltd., Shenzhen Lingnan Nonferrous Metals Corporation Limited.
This section Method 3 drafting unit. Daye Nonferrous Metals Group Holdings Limited.
This section participated in the drafting Method 3. Yunnan Copper Co., Ltd., Beijing Mining Research Institute, Shenzhen Lingnan Nonferrous
Genus Company.
The main drafters of this Part 1. Wu Suru valley Songhai, Deng Chuan, Dian Chen Geng, Ma-li, Dai Fengying, Zhu Xiaoyan, Wang Hui, Douhuai Zhi,
Zhang Wei, Wang Dongzhen, Liutian Ping, Liu Feng, Zhang Xiaodong.
The main drafters of this section Method 2. Liqin Mei, Zhaoxiao Pei, Wang real rich, Ye Xin, Yu Chen Bin, Zheng Wenying, Mary, million pairs, Qi month flower,
Zhang Liao, Ye Zhou, Zhang Xiaojun, Huang Ping ice.
The main drafters of this section Method 3. Ho Mei Lan, Zhang Zheng, Hujun Kai, Yuangong Qi ,, Shi Xiaoying, Chen Yu Bin, Zheng Wenying, Chen Geng Temple,
Wanghao Ying, Tan Xiuli, left Hong Yi.
Matte chemical analysis
Part 8. Determination of arsenic content
Hydride generation - atomic fluorescence spectrometry,
Diethyl dithiocarbamate spectrophotometry silver
And potassium bromate titration
1 Scope
This section YS/T 990 specifies the method for determination of arsenic content in the matte.
This section applies to the determination of copper in ice arsenic content. 1 measured in the range of 0.010% to 0.20%; Tier 2 measurement range
0.010% to 0.20%; Tier 3 measurement ranges from 0.20% to 5.00%.
2. Method 1. Hydride Generation - Atomic Fluorescence Spectrometry
2.1 Method summary
After the sample is dissolved by acid, ascorbic acid pre-reduction with thiourea impurity element in the hydride generator, arsenic test solution is
Potassium borohydride reduction of hydride with argon gas into the quartz furnace atomizer, the fluorescence intensity measured on the atomic fluorescence spectrometer.
2.2 Reagents
Unless otherwise specified in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity.
2.2.1 thiourea. pure class distinctions.
2.2.2 Ascorbic acid. pure class distinctions.
2.2.3 potassium borohydride. pure class distinctions.
2.2.4 Potassium hydroxide. pure class distinctions.
2.2.5 hydrochloric acid (ρ = 1.19g/mL).
2.2.6 hydrochloric acid (19).
2.2.7 nitric acid (ρ = 1.42g/mL).
2.2.8 nitric acid (19).
2.2.9 sulfuric acid (ρ = 1.84g/mL).
2.2.10 sulfuric acid (11).
2.2.11 sodium hydroxide solution (10%).
2.2.12 thiourea - ascorbic acid solution (100g/L). Weigh 5g thiourea (2.2.1) and 5g ascorbic acid (2.2.2), and dissolved in water
Diluted to 100mL, and mix. The time is now equipped with.
2.2.13 potassium borohydride (10g/L) and potassium hydroxide (5g/L) mixed solution. Weigh accurately 1g potassium borohydride (2.2.3) and 0.5g hydroxide
Potassium (2.2.4) dissolved in 100mL of water, and mix.
2.2.14 arsenic standard stock solution. Weigh 0.1320g advance at 100 ℃ ~ 105 ℃ drying 1h baseline arsenic trioxide, placed
100mL beaker, add 10mL of sodium hydroxide solution (2.2.11), heat gently to dissolve after adding 40mL water and 1 drop of phenolphthalein ethanol solution
(2.2.17), with sulfuric acid (2.2.10) and to a phenolphthalein red faded and excess 2mL, cooled to room temperature and transferred to 1000mL volumetric flask with water
Dilute to volume, and mix. This solution 1mL containing 100μg arsenic.
2.2.15 arsenic standard solution. Pipette 10.00mL arsenic standard stock solution (2.2.14) in 100mL volumetric flask, dilute to the mark, mix
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