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GB/T 14352.20-2021: Methods for chemical analysis of tungsten ores and molybdenum ores - Part 20: Determination of niobium, tantalum, zirconium, hafnium and 15 rare earth elements content - Inductively coupled plasma mass spectrometry
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Methods for chemical analysis of tungsten ores and molybdenum ores - Part 20: Determination of niobium, tantalum, zirconium, hafnium and 15 rare earth elements content - Inductively coupled plasma mass spectrometry
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GB/T 14352.20-2021
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Basic data | Standard ID | GB/T 14352.20-2021 (GB/T14352.20-2021) | | Description (Translated English) | Methods for chemical analysis of tungsten ores and molybdenum ores - Part 20: Determination of niobium, tantalum, zirconium, hafnium and 15 rare earth elements content - Inductively coupled plasma mass spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D40 | | Word Count Estimation | 14,152 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 14352.20-2021: Methods for chemical analysis of tungsten ores and molybdenum ores - Part 20: Determination of niobium, tantalum, zirconium, hafnium and 15 rare earth elements content - Inductively coupled plasma mass spectrometry
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Methods for chemical analysis of tungsten ores and molybdenum ores - Part 20.Determination of niobium, tantalum, zirconium, hafnium and 15 rare earth elements content - Inductively coupled plasma mass spectrometry
ICS 73.060
D40
National Standards of People's Republic of China
Chemical analysis methods of tungsten ore and molybdenum ore
Part 20.Niobium, Tantalum, Zirconium, Hafnium and 15 Rare Earth Elements
Determination of element content by inductively coupled plasma mass spectrometry
Released on 2021-03-09
2021-10-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅰ
1 Scope 1
2 Normative references 1
3 Principle 1
4 Reagent 2
5 Apparatus and equipment 2
6 Sample 2
7 Analysis step 2
7.1 Sample size 2
7.2 Blank test 2
7.3 Verification test 3
7.4 Decomposition of the sample 3
7.5 Preparation of calibration solution series 3
7.6 Determination 4
7.7 Drawing the calibration curve 4
8 Result calculation 4
9 Precision and accuracy 4
10 Quality Assurance and Control 5
Appendix A (informative appendix) Instrument reference operating conditions 6
Appendix B (informative appendix) Precision and accuracy summary table 8
Foreword
GB/T 14352 "Methods for Chemical Analysis of Tungsten Ore and Molybdenum Ore" has 22 parts, including 25 chemical analyses of 34 elements
method.
---Part 1.Determination of tungsten content;
---Part 2.Determination of the amount of molybdenum;
---Part 3.Determination of copper content;
---Part 4.Determination of lead content;
---Part 5.Determination of zinc content;
---Part 6.Determination of cadmium content;
---Part 7.Determination of the amount of cobalt;
---Part 8.Determination of nickel content;
---Part 9.Determination of Sulfur Content;
---Part 10.Determination of arsenic content;
---Part 11.Determination of the amount of bismuth;
---Part 12.Determination of silver content;
---Part 13.Determination of tin content;
---Part 14.Determination of Gallium Content;
---Part 15.Determination of Germanium Content;
---Part 16.Determination of selenium content;
---Part 17.Determination of the amount of tellurium;
---Part 18.Determination of rhenium content;
---Part 19.Determination of bismuth, cadmium, cobalt, copper, iron, lithium, nickel, phosphorus, lead, strontium, vanadium and zinc content inductively coupled plasma atomic emission
Spectroscopy;
---Part 20.Determination of niobium, tantalum, zirconium, hafnium and 15 rare earth elements by inductively coupled plasma mass spectrometry;
---Part 21.Determination of Arsenic Content Hydride Generation-Atomic Fluorescence Spectrometry;
--- Part 22.Determination of the amount of antimony hydride generation-atomic fluorescence spectrometry.
This part is Part 20 of GB/T 14352.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part was proposed by the Ministry of Natural Resources of the People's Republic of China.
This part is under the jurisdiction of the National Standardization Technical Committee for Natural Resources and Land and Space Planning (SAC/TC93).
Drafting units of this section. Jiangsu Geological Survey Research Institute, China Natural Resource Economics Research Institute.
The main drafters of this section. Cai Yuman, Li Ming, Shen Wenjin, Xiao Yufang, Jiang Ye, Yang Cheng, Huang Guangming, Zhang Peixin, Chang Qing, Gao Xiangyun.
Chemical analysis methods of tungsten ore and molybdenum ore
Part 20.Niobium, Tantalum, Zirconium, Hafnium and 15 Rare Earth Elements
Determination of element content by inductively coupled plasma mass spectrometry
Warning---The personnel using this section should have practical experience in formal laboratory work. This section does not point out all possible safety issues
question. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated by relevant national laws and regulations.
1 Scope
This part of GB/T 14352 specifies the determination of niobium, tantalum, zirconium, hafnium and hafnium in tungsten ores and molybdenum ores by inductively coupled plasma mass spectrometry.
15 rare earth elements (yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium) content.
This part is applicable to niobium, tantalum, zirconium, hafnium and 15 rare earth elements (yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium,
Dysprosium, holmium, erbium, thulium, ytterbium, lutetium) content determination by inductively coupled plasma mass spectrometry.
The detection limits and measurement ranges of the elements in this section are shown in Table 1.
Table 1 The detection limit and measurement range of each element method are in micrograms per gram.
Analytical element method detection limit measurement range Analytical element method detection limit measurement range
Niobium 0.16 0.5~500 Europium 0.04 0.1~500
Tantalum 0.07 0.1~50 Gadolinium 0.03 0.1~100
Zirconium 2.5 10~500 Terbium 0.01 0.05~100
Hafnium 0.11 0.5~50 Dysprosium 0.03 0.1~100
Yttrium 0.10 0.3~500 Holmium 0.008 0.05~100
Lanthanum 0.14 0.5~1000 Erbium 0.02 0.1~100
Cerium 0.20 1~1000 Thulium 0.005 0.05~100
Pr 0.03 0.1~500 Ytterbium 0.03 0.1~100
Neodymium 0.14 0.5~500 Lutetium 0.01 0.05~100
Samarium 0.04 0.1~500
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 14505 General rules and general regulations of rock and ore chemical analysis methods
3 Principle
The sample was melted and decomposed by sodium hydroxide-sodium peroxide, separated by water extraction and precipitation, acidified, and prepared into a sample solution. Use inductive coupling plasmon
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