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GB/T 14353.17-2014: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 17: Determination of thallium content
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Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 17: Determination of thallium content
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GB/T 14353.17-2014
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Basic data | Standard ID | GB/T 14353.17-2014 (GB/T14353.17-2014) | | Description (Translated English) | Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 17: Determination of thallium content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D40 | | Classification of International Standard | 73.060 | | Word Count Estimation | 11,136 | | Date of Issue | 12/5/2014 | | Date of Implementation | 4/1/2015 | | Quoted Standard | GB/T 6682; GB/T 14505 | | Regulation (derived from) | Announcement of Newly Approved National Standards 2014 No. 27 | | 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 | | Summary | This Standard specifies the determination of the amount of thallium copper ore, lead ore and zinc ore Graphite Furnace Atomic Absorption Spectrometry. This section applies to copper ore, graphite furnace atomic lead ores and zinc ores in the amount of tha | GB/T 14353.17-2014: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 17: Determination of thallium content
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Methods for chemical analysis of copper ores, lead ores and zinc ores Part 17.. Determination of thallium content
ICS 73.060
D40
National Standards of People's Republic of China
Copper ores lead ores and zinc ores - Methods for chemical analysis
Part 17. Determination of thallium content
Methodsforchemicalanalysisofcopperores, leadoresand
zincores-Part 17. Determinationofthaliumcontent
Issued on. 2014-12-05
2015-04-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 14353 "copper ores lead ores and zinc ores chemical analysis method" is divided into 18 parts.
--- Part 1. Determination of copper content;
--- Part 2. Determination of lead content;
--- Part 3. Determination of the amount of zinc;
--- Part 4. Determination of cadmium content;
--- Part 5. Determination of nickel content;
--- Part 6. Determination of cobalt content;
--- Part 7. Determination of arsenic content;
--- Part 8. Determination of the amount of bismuth;
--- Part 9. Determination of molybdenum;
--- Part 10. Determination of tungsten;
--- Part 11. determination of silver;
--- Part 12. Determination of sulfur content;
--- Part 13. the amount of gallium, indium amount, the amount of thallium, molybdenum and tungsten content Determination;
--- Part 14. Determination of germanium content;
--- Part 15. Determination of the amount of selenium;
--- Part 16. Determination of tellurium content;
--- Part 17. Determination of the amount of thallium;
--- Part 18. the amount of copper, lead content, the amount of zinc, cobalt and nickel content determination.
This section GB/T 14353 Part 17.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section presents the People's Republic of China Ministry of Land Resources.
This part of the National Standardization Technical Committee on Land Resources (SAC/TC93) centralized.
This section is drafted. the Shaanxi Provincial Institute of Experimental Geology and Mineral Resources.
The main drafters of this section. Wang Shan, Xiong Ying, Li Osamu, Mu is the warehouse.
Copper ores lead ores and zinc ores - Methods for chemical analysis
Part 17. Determination of thallium content
Warning. Use of this section a person shall be regular laboratory work experience. This section does not indicate that all possible security issues.
Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
GB/T 14353 provisions of this part of the copper ore, lead ore and zinc ore Graphite Furnace Atomic Absorption Spectrometry Determination of thallium.
This section applies to copper ore, graphite furnace atomic lead ores and zinc ores in the amount of thallium absorption spectrometry.
Measuring range. 0.06μg/g ~ 40μg/g of thallium.
The detection limits. thallium 0.02μg/g.
2 Normative references
The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 14505 method for chemical analysis of rocks and ores General rules and regulations
Principle 3
Sample nitric acid - hydrofluoric acid - perchloric acid - sulfuric acid decomposition, in 10% nitric acid medium, in the presence of hydrogen peroxide and iron salts, polyurethane foam
Foam plastic enrichment that thallium impurity element separation, freed of thallium in a boiling water bath, ascorbic acid as matrix modifier in graphite furnace atomic absorption
The photometer to thallium hollow cathode lamp as the light source, the radiation characteristics of the element thallium light, through the sample in a graphite furnace steam, the steam is thallium in
The ground state atomic absorption degree by the radiation intensity weakened, calculate the amount in a sample of thallium.
4 Reagents
Unless otherwise indicated in the analysis are consistent with the use of analytical reagents and GB/T 6682 water analytical laboratory.
4.1 Hydrogen peroxide (30% H2O2).
4.2 nitric acid (ρ = 1.42g/mL).
4.3 Hydrofluoric acid (ρ = 1.13g/mL). Warning. toxic and highly corrosive hydrofluoric acid, the operation should wear gloves preservative to prevent skin
contact.
4.4 sulfate (ρ = 1.84g/mL).
4.5 perchloric acid (ρ = 1.68g/mL). Warning. explosive materials, when used carefully!
4.6 polyurethane foam (2cm × 1cm × 0.5cm).
4.7 sulfate (11). WARNING. Improper dilution prone danger!
4.8 nitric acid (28).
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