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GB/T 1819.14-2017: Methods for chemical analysis of tin concentrates -- Part 14: Determination of copper content -- Flame atomic absorption spectrometry
Status: Valid GB/T 1819.14: Evolution and historical versions
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| GB/T 1819.14-2017 | English | 109 |
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Methods for chemical analysis of tin concentrates -- Part 14: Determination of copper content -- Flame atomic absorption spectrometry
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GB/T 1819.14-2017
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| GB/T 1819.14-2006 | English | 279 |
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Methods for chemical analysis of tin concentrates -- Determination of copper content -- Flame atomic absorption spectrometric method
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GB/T 1819.14-2006
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Basic data | Standard ID | GB/T 1819.14-2017 (GB/T1819.14-2017) | | Description (Translated English) | Methods for chemical analysis of tin concentrates -- Part 14: Determination of copper content -- Flame atomic absorption spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D41 | | Classification of International Standard | 73.060 | | Word Count Estimation | 5,569 | | Date of Issue | 2017-09-29 | | Date of Implementation | 2018-04-01 | | Older Standard (superseded by this standard) | GB/T 1819.14-2006 | | Regulation (derived from) | National Standard Announcement 2017 No. 23 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 1819.14-2017: Methods for chemical analysis of tin concentrates -- Part 14: Determination of copper content -- Flame atomic absorption spectrometry
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for chemical analysis of tin concentrates-Part 14. Determination of copper content-Flame atomic absorption spectrometry
ICS 73.060
D41
National Standards of People's Republic of China
Replacing GB/T 1819.14-2006
Methods for chemical analysis of tin concentrates
Part 14. Determination of copper content
Flame atomic absorption spectrometry
Methods for chemical analysis of tinconcentrates-
Part 14.Determinationofcoppercontent-
2017-09-29 Posted
2018-04-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 1819 "tin concentrate chemical analysis method" is divided into 21 parts.
--- Part 1. Determination of moisture thermal drying method;
--- Part 2. Determination of tin content potassium iodate titration;
--- Part 3. Determination of iron content cerium sulfate titration method;
--- Part 4. Determination of lead content by flame atomic absorption spectrometry and Na2 EDTA titration;
--- Part 5. Determination of arsenic Arsenic antimony molybdenum blue spectrophotometry and iodometric titration;
--- Part 6. Determination of the amount of antimony; malachite green spectrophotometry and flame atomic absorption spectrometry;
--- Part 7. Determination of bismuth content by flame atomic absorption spectrometry;
--- Part 8. Determination of zinc content by flame atomic absorption spectrometry;
--- Part 9. Determination of tungsten oxide content; thiocyanate spectrophotometry;
--- Part 10. Determination of sulfur content High-frequency induction furnace combustion infrared absorption method and potassium iodate titration;
--- Part 11. Determination of the amount of aluminum oxide chromium azure S spectrophotometry;
--- Part 12. Determination of the amount of silica silicon molybdenum blue spectrophotometry and sodium hydroxide titration;
--- Part 13. Determination of magnesia, calcium oxide content; Flame atomic absorption spectrometry;
--- Part 14. Determination of copper content by flame atomic absorption spectrometry;
--- Part 15. Determination of fluorine content ion selective electrode method;
--- Part 16. Determination of silver content; Flame atomic absorption spectrometry;
--- Part 17. Determination of mercury content; atomic fluorescence spectrometry;
--- Part 18. Determination of nickel content by flame atomic absorption spectrometry;
--- Part 19. Determination of cobalt content; Flame atomic absorption spectrometry;
--- Part 20. Determination of cadmium content by flame atomic absorption spectrometry;
--- Part 21. Determination of calcium, magnesium, copper, lead, zinc, arsenic, antimony, bismuth, silver content Inductively coupled plasma atomic emission spectrometry.
This section GB/T 1819 Part 14.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 1819.14-2006 "Determination of copper content of tin concentrate - Determination of copper content flame atomic absorption spectrometry", the
Part and GB/T 1819.14-2006 compared to the following major changes.
--- Modify the precision part;
--- Increase the test report terms.
This part is proposed by China Nonferrous Metal Industry Association.
This part of the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for the drafting unit. Yunnan Tin Industry Co., Ltd..
This section participates in the drafting unit. Guangxi Huaxi Group Co., Ltd., Tianjin Exit Inspection and Quarantine Bureau of mineral metal materials testing
Heart, Guangdong Industrial Analysis Center, Bayuquan Exit Inspection and Quarantine, Nantong Exit Inspection and Quarantine Comprehensive Technology Center.
The main drafters of this section. Zhao Xiaoying, Zhang Pihui, Wang Hong, Han Juan, Huang Xiaomei, Wang Caiyun, Zhang Ti Jiao, Zhang Yongjin, Huang Puying, Dou Huaizhi,
Jiang Tao, Xu Jie Yu.
This part replaces the previous version of the release.
--- GB/T 1819.14-2006;
--- GB/T 1822-1979.
Methods for chemical analysis of tin concentrates
Part 14. Determination of copper content
Flame atomic absorption spectrometry
1 Scope
GB/T 1819 provisions of this part of the determination of the amount of copper in tin concentrate.
This section applies to the determination of copper concentrate tin concentrate. Determination of the range of 0.005% ~ 2.00%.
2 method summary
Samples of hydrochloric acid, nitric acid decomposition, in dilute hydrochloric acid medium, the use of air - acetylene flame atomic absorption spectrometer at a wavelength of 324.7nm Department,
The absorbance of copper is measured.
3 reagent
Unless otherwise specified, only reagents that are identified as analytically pure and secondary water are used in the analysis.
3.1 Hydrochloric acid (p = 1.19 g/mL).
3.2 Nitric acid (p = 1.42 g/mL).
3.3 Hydrochloric acid (1 1).
3.4 Nitric acid (1 1).
3.5 copper standard storage solution Weigh 0.5000g copper metal (wCu ≥ 99.99%) in 250mL beaker, add 20mL nitric acid
(3.4), cover the watch glass, low temperature heating until completely dissolved, boil off nitrogen oxides, cooled to room temperature. Into a 500mL volumetric flask, add
10mL nitric acid (3.4), diluted with water to the mark, mix well. 1 mL of this solution contains 1 mg of copper.
3.6 copper standard solution Pipette 10.00mL copper standard stock solution (3.5) in.200mL volumetric flask, add 4mL nitric acid (3.4), with
Dilute the water to the mark and mix well. This solution 1mL containing 50μg copper.
4 instruments
Atomic absorption spectrometer with copper hollow cathode lamp.
In the best working conditions of the instrument, anyone who can meet the following indicators can be used.
--- Characteristic concentration In the solution in accordance with the matrix of the measuring solution, the characteristic concentration of copper should not exceed 0.03μg/mL.
--- Precision. With the highest concentration of standard solution measured 10 times the absorbance, the standard deviation should not exceed 1.0% of the average absorbance;
Measure the absorbance 10 times with the lowest standard solution (not the "zero" standard solution), and the standard deviation should not exceed the maximum
Concentration Standard solution 0.5% of the average absorbance.
--- Work curve linearity. The standard curve is divided into five equal concentrations, the highest segment of the absorbance difference and the lowest segment of the absorbance difference
Than, should not be less than 0.70.
5 sample
Sample size should not be greater than 0.074mm.
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