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GB/T 4103.17-2018: Method for chemical analysis of lead and lead alloys -- Part 17: Determination of sodium, magnesium contents -- Flame atomic absorption spectrometry
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Method for chemical analysis of lead and lead alloys -- Part 17: Determination of sodium, magnesium contents -- Flame atomic absorption spectrometry
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GB/T 4103.17-2018
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Basic data | Standard ID | GB/T 4103.17-2018 (GB/T4103.17-2018) | | Description (Translated English) | Method for chemical analysis of lead and lead alloys -- Part 17: Determination of sodium, magnesium contents -- Flame atomic absorption spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.60 | | Word Count Estimation | 6,667 | | Date of Issue | 2018-09-17 | | Date of Implementation | 2019-02-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 4103.17-2018: Method for chemical analysis of lead and lead alloys -- Part 17: Determination of sodium, magnesium contents -- Flame atomic absorption spectrometry
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Method for chemical analysis of lead and lead alloys - Part 17. Determination of sodium, magnesium contents - Flame atomic absorption spectrometry
ICS 77.120.60
H13
National Standards of People's Republic of China
Lead and lead alloy chemical analysis method
Part 17. Determination of sodium content and magnesium content
Flame atomic absorption spectrometry
Part 17.Determinationofsodium,magnesiumcontents-
Published on.2018-09-17
Implementation of.2019-02-01
State market supervision and administration
China National Standardization Administration issued
Foreword
GB/T 4103 "Chemical Analysis Methods for Lead and Lead Alloys" has 17 parts.
--- Part 1. Determination of the amount of tin;
--- Part 2. Determination of sputum;
--- Part 3. Determination of copper content;
--- Part 4. Determination of iron content;
--- Part 5. Determination of the amount of sputum;
--- Part 6. Determination of the amount of arsenic;
---Part 7. Determination of the amount of selenium;
--- Part 8. Determination of the amount of sputum;
---Part 9. Determination of calcium content;
--- Part 10. Determination of the amount of silver;
--- Part 11. Determination of the amount of zinc;
--- Part 12. Determination of enthalpy;
--- Part 13. Determination of the amount of aluminum;
---Part 14. Determination of cadmium content by flame atomic absorption spectrometry;
---Part 15. Determination of nickel content by flame atomic absorption spectrometry;
---Part 16. Determination of copper, silver, antimony, arsenic, antimony, tin and zinc
---Part 17. Determination of sodium content and magnesium content by flame atomic absorption spectrometry.
This part is the 17th part of GB/T 4103.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part was proposed by the China Nonferrous Metals Industry Association.
This part is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243).
This section is responsible for drafting units. Zhuzhou Smelting Group Co., Ltd., Henan Yuguang Gold and Lead Co., Ltd., Huludao Zinc Industry Co., Ltd.
Co., Ltd., North Mine Testing Technology Co., Ltd., Hunan Nonferrous Metal Research Institute, Changsha Research Institute of Mining and Metallurgy Co., Ltd., Guangdong Industrial Branch
Analysis and Testing Center, Shenzhen Zhongjin Lingnan Nonferrous Metals Co., Ltd.
The main drafters of this section. Lei Su, Zheng Lixia, Jiang Qing, Cheng Zhen, Yang Xia, Duan Yue, Li Zunyi, Zhang Lianxiang, Su Chunfeng, Yang Deli, Pang Wenlin,
Yi Jia, Cui Hao, Zhang Tianqi, Xu Jieyu, Zhou Zhiping, Luo Fuxing, Xie Huiyuan, Tang Ping.
Lead and lead alloy chemical analysis method
Part 17. Determination of sodium content and magnesium content
Flame atomic absorption spectrometry
1 Scope
This part of GB/T 4103 specifies the method for determining the amount of sodium and magnesium in lead and lead alloys.
This part is applicable to the amount of sodium and magnesium in the anode alloy plate for electrolytic deposition, hard lead-bismuth alloy, special hard lead-bismuth alloy, and lead alloy ingot for cable sheathing.
Determination. The amount of sodium is determined to be in the range of 0.0005% to 0.0050%. The amount of magnesium measured ranges from 0.0005% to 0.050%.
2 Method summary
The sample was dissolved with nitric acid and tartaric acid. In a dilute nitric acid medium, using strontium salt as a releasing agent, using an air-acetylene flame, respectively, in the atomic absorption
The absorbance of sodium and magnesium was measured at a wavelength of 589.0 nm and 285.2 nm of the spectrometer, and the amount of sodium and magnesium were calculated by a working curve method.
3 reagents
Unless otherwise stated, the reagents used in this section are excellent grade pure reagents, preparation solutions and analytical waters that meet national or industrial standards.
All are first grade water. The vessels used in the experiment were all soaked in dilute nitric acid (1 4) and cleaned.
3.1 Tartaric acid.
3.2 Barium nitrate.
3.3 Nitric acid (ρ=1.40g/mL), MOS reagent.
3.4 Nitric acid (1 2).
3.5 Nitric acid (1 3).
3.6 tartaric acid solution (200g/L).
3.7 Barium nitrate solution (100g/L).
3.8 Sodium standard storage solution. Weigh 0.2305g of sodium carbonate reference material previously baked at 120 ° C for 1 h in 250 mL of PTFE
Add 15 mL of nitric acid (3.4) to the cup. After the solution is completely dissolved, transfer it to a 1000 mL Teflon volumetric flask and dilute to volume with water. This solution
1 mL contains 100 μg of sodium.
3.9 Magnesium standard storage solution. Weigh 0.1000g of magnesium metal (wMg≥99.99%) in a 250mL Teflon beaker and add
10mL nitric acid (3.4), heated to complete dissolution, boiled to remove nitrogen oxides, removed, cooled, transferred to 1000mL of PTFE capacity
Dilute to the mark with water and mix well. 1 mL of this solution contained 100 μg of magnesium.
3.10 Sodium standard solution. Pipette 10.00 mL of sodium standard storage solution (3.8) into a 100 mL Teflon volumetric flask and dilute with water until
Scale and mix. 1 mL of this solution contained 10 μg of sodium.
3.11 Magnesium standard solution. Pipette 10.00mL of magnesium standard storage solution (3.9) into a 100mL Teflon volumetric flask and dilute with water until
Scale and mix. 1 mL of this solution contained 10 μg of magnesium.
4 instruments
Atomic absorption spectrometer with sodium and magnesium hollow cathode lamps.
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