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GB/T 17418.7-2010: Methods for analysis of noble metals in geochemical samples -- Part 7: Determination of platinum group elements -- By nickel sulfide fire assay-inductively coupled plasma mass spectrometry
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Methods for analysis of noble metals in geochemical samples -- Part 7: Determination of platinum group elements -- By nickel sulfide fire assay-inductively coupled plasma mass spectrometry
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GB/T 17418.7-2010
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Basic data | Standard ID | GB/T 17418.7-2010 (GB/T17418.7-2010) | | Description (Translated English) | Methods for analysis of noble metals in geochemical samples -- Part 7: Determination of platinum group elements -- By nickel sulfide fire assay-inductively coupled plasma mass spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D46 | | Classification of International Standard | 73.060 | | Word Count Estimation | 10,139 | | Date of Issue | 2010-11-10 | | Date of Implementation | 2011-02-01 | | Quoted Standard | GB/T 14506.1; GB/T 6682-2008 | | Regulation (derived from) | National Standard Approval Announcement 2010 No.8 (Total No.163) | | 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 applies to geochemical samples platinum, palladium, rhodium, iridium, hungry, determination nail element. Warning-this part of the staff should be using regular laboratory work experience. This section does not indicate that all possible safety problems. Users are responsible for taking appropriate safety and health practices, and to ensure compliance with the relevant conditions of the national regulations. GB/T 17418 provisions of this part of the geochemical samples assaying crystal nickel mirror-inductively coupled plasma mass spectrometry method (ICP-MS) determination of platinum group elements. | GB/T 17418.7-2010: Methods for analysis of noble metals in geochemical samples -- Part 7: Determination of platinum group elements -- By nickel sulfide fire assay-inductively coupled plasma mass spectrometry
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Methods for analysis of noble metals in geochemical samples Part 7. Determination of platinum group elements By nickel sulfide fire assay-inductively coupled plasma mass spectrometry
ICS 73.060
D46
National Standards of People's Republic of China
Analysis of noble metals in geochemical samples
Part 7. Determination of the amount of PGE
Nickel Sulfur Assay - Inductively Coupled Plasma Mass Spectrometry
Part 7. Determinationofplatinumgroupelements-
Issued on. 2010-11-10
2011-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 17418 "analysis of noble metals in geochemical samples Method" is divided into seven parts.
--- Part 1. General rules and regulations;
--- Part 2. platinum and rhodium content - Determination of thiourea enrichment - catalytic polarography;
--- Part 3. Determination of palladium content - Preconcentration by thiourea - Graphite furnace atomic absorption spectrophotometry;
--- Part 4. Determination of the amount of iridium-enriched thiourea - Catalytic spectrophotometry;
--- Part 5. Determination of the amount of ruthenium and osmium distillation - Catalytic spectrophotometry;
--- Part 6. platinum, palladium and gold contents - fire assay enrichment - Emission Spectrometry;
--- Part 7. Determination of nickel sulphide fire assay gold platinum group elements - Inductively Coupled Plasma Mass Spectrometry.
This section GB/T 17418 Part 7.
Appendix A of this section is normative appendix, Appendix B, Appendix C is informative appendix.
This section presents the People's Republic of China Ministry of Land Resources.
This part of the National Standardization Technical Committee under the jurisdiction of Land and Resources.
This section drafted by. National Geological Experimental Test Center.
The main drafters of this section. Li Bing, Yang Hongxia, Liu Wei.
Analysis of noble metals in geochemical samples
Part 7. Determination of the amount of PGE
Nickel Sulfur Assay - Inductively Coupled Plasma Mass Spectrometry
Warning --- Use this section shall be a person experiences regular laboratory work. This section does not point out all possible security asked
question. 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 17418 provisions of this part of the geochemical samples Nickel Sulfur Assay - Inductively Coupled Plasma Mass Spectrometry (ICP-MS) Determination of Platinum
The method of group elements.
This section applies to geochemical samples of platinum, palladium, rhodium, determination of iridium, osmium, ruthenium element.
Measuring range. See Appendix A.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this part. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to this part of the research agreement
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this section.
GB/T 14506.1 Silicate rocks - Part 1. Determination of water adsorption
Laboratory use specifications and test methods GB/T 6682-2008 Analysis
Principle 3
The sample was mixed with a mixed flux at 1100 ℃ high temperature melting. Precious metals separated by nickel matte capture and other elements, with hydrochloric acid
Dissolved nickel matte buckle, leaching, precipitation, and membrane into the sealed sample dissolution vessel, dissolved in aqua regia. Determination of platinum group elements directly on the ICP-MS, in which
Osmium determined by isotope dilution. Telluride co-precipitation method can improve the recovery of precious metals and reproducibility.
4 Reagents and solutions
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and deionized water or equivalent purity water, the water standards in line with
GB/T 6682-2008. In the blank test (7.1), if it has detected as part of the test element analytical method using reagent containing more than
The detection limit of the content, and make sure that affect the determination of analyte in a sample of low amounts of reagents to be purified.
4.1 Borax. 100 ℃ baking dehydrated after crush spare.
4.2 lithium tetraborate.
4.3 sodium carbonate.
4.4 nickel carbonyl. size 2.2μm ~ 2.8μm, before use of platinum group elements were blank test. Warning --- highly toxic chemicals, carefully
operating.
4.5 sublimated sulfur.
4.6 silica.
4.7 flour. Commercially available plain flour.
4.8 covering agent (11). borax (4.1) and sodium carbonate (4.3) and mix well.
4.9 stannous chloride solution (ρ1mol/L). with stannous chloride prepared 1mol/stannous chloride solution (3mol/L HCl medium) L of.
4.10 hydrochloric acid (ρ1.18g/mL). excellent pure or high purity.
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