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GB/T 14353.20-2019: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 20: Determination of rhenium content -- Inductively coupled plasma mass spectroscopy
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Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 20: Determination of rhenium content -- Inductively coupled plasma mass spectroscopy
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GB/T 14353.20-2019
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Basic data | Standard ID | GB/T 14353.20-2019 (GB/T14353.20-2019) | | Description (Translated English) | Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 20: Determination of rhenium content -- Inductively coupled plasma mass spectroscopy | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D40 | | Classification of International Standard | 73.060 | | Word Count Estimation | 14,177 | | Date of Issue | 2019-10-18 | | Date of Implementation | 2020-05-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 14353.20-2019: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 20: Determination of rhenium content -- Inductively coupled plasma mass spectroscopy
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Methods for chemical analysis of copper ores, lead ores and zinc ores--Part 20. Determination of rhenium content--Inductively coupled plasma mass spectroscopy
ICS 73.060
D40
National Standards of People's Republic of China
Copper ore, lead ore and zinc ore chemical analysis methods
Part 20. Measurement
Inductively coupled plasma mass spectrometry
Part 20.Determinationofrheniumcontent-Inductively
Published on.2019-10-17
2020-05-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
GB/T 14353 "Chemical Analysis Methods for Copper Ore, Lead Ore and Zinc Ore" is divided into 21 parts.
--- Part 1. Determination of copper content;
--- Part 2. Determination of lead content;
--- Part 3. Determination of zinc content;
--- 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 volume;
---Part 9. Determination of molybdenum content;
--- Part 10. Determination of tungsten content;
--- Part 11. Determination of silver content;
--- Part 12. Determination of sulfur content;
--- Part 13. Determination of the amount of gallium, indium, niobium, tungsten and molybdenum;
--- Part 14. Determination of enthalpy;
---Part 15. Determination of selenium content;
---Part 16. Determination of enthalpy;
--- Part 17. Determination of enthalpy;
---Part 18. Determination of copper, lead, zinc, cobalt and nickel;
---Part 19. Determination of tin content by hydride generation atomic fluorescence spectrometry;
--- Part 20. Determination of enthalpy inductively coupled plasma mass spectrometry;
--- Part 21. Determination of arsenic content by hydride generation atomic fluorescence spectrometry.
This part is the 20th part of GB/T 14353.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part is proposed by the Ministry of Natural Resources of the People's Republic of China
This part is under the jurisdiction of the National Land Resources Standardization Technical Committee (SAC/TC93).
This section drafted by. Shaanxi Institute of Geology and Mineral Resources Research Institute Co., Ltd.
The main drafters of this section. Xiong Ying, Wu Hao, Dong Ya Ni, Yan Naicang, Ruo Ruohui, Liu Xiaoyan.
Copper ore, lead ore and zinc ore chemical analysis methods
Part 20. Measurement
Inductively coupled plasma mass spectrometry
Cautions - Personnel using this section should have hands-on experience in formal laboratory work. This section does not point out all possible security questions.
question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations.
1 Scope
This part of GB/T 14353 specifies the determination of antimony content in copper ore or polymetallic ore by inductively coupled plasma mass spectrometry, including
Magnesium oxide sintering (method 1) and closed acid digestion (method 2) Two different pre-treatment analytical methods.
This section applies to magnesium oxide sintering or closed acid digestion-inductively coupled plasma mass spectrometry in the presence of antimony in copper ore or polymetallic ores.
Determination.
The detection limits of Method 1 and Method 2 were both 0.004 μg/g.
Measuring range. 0.01 μg/g ~ 15.0 μg/g.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 14505 General rules and general rules for chemical analysis of rocks and ores
3 Determination of antimony content in copper ore or polymetallic ore by magnesium oxide sintering-inductively coupled plasma mass spectrometry (method 1)
3.1 Principle
The sample is mixed with magnesium oxide and melt-decomposed in a muffle furnace. After cooling, it is extracted by hot water, and the solution is dissolved in the form of perrhenic acid (ReO-14).
The liquid is separated from a large amount of matrix components, and the cerium-containing sample solution is introduced into an inductively coupled plasma mass spectrometer after being boiled at a low temperature, filtered, concentrated and acidified.
Determine the count value of 铼, use 铑 element as internal standard, the count value is proportional to the concentration of the measured element, and use the calibration curve method to directly measure the sample.
The amount of electricity.
3.2 Reagents or materials
This section uses analytically pure reagents and secondary water in accordance with GB/T 6682, unless otherwise stated.
3.2.1 Magnesium oxide. excellent grade pure.
3.2.2 Hydrogen peroxide solution. w(H2O2) = 30%.
3.2.3 Nitric acid solution (1 1). excellent grade pure.
3.2.4 Preparation of 铼 standard solution.
a) 铼 standard stock solution [ρ (Re) = 250μg/mL]. weigh 0.0971g potassium perrhenate ( > 99.99%), placed in 100mL
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