GB/T 17418.6-2010 English PDF

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GB/T 17418.6-2010: Methods for analysis of noble metals in geochemical samples -- Part 6: Determination of platinum, palladium and gold content -- Preconcentration by fire assay-emission spectrometry
Status: Valid

GB/T 17418.6: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 17418.6-2010	209	Add to Cart	3 days	Methods for analysis of noble metals in geochemical samples -- Part 6: Determination of platinum, palladium and gold content -- Preconcentration by fire assay-emission spectrometry	Valid
GB/T 17418.6-1998	199	Add to Cart	2 days	Methods for analysis of noble metals in geochemical samples--Determination of platinum, palladium and gold content-Preconcentration by fire assay-Emission spectrographic method	Obsolete

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Basic data

Standard ID: GB/T 17418.6-2010 (GB/T17418.6-2010)
Description (Translated English): Methods for analysis of noble metals in geochemical samples -- Part 6: Determination of platinum, palladium and gold content -- Preconcentration by fire assay-emission spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D46
Classification of International Standard: 73.060
Word Count Estimation: 9,942
Date of Issue: 2010-11-10
Date of Implementation: 2011-02-01
Older Standard (superseded by this standard): GB/T 17418.6-1998
Quoted Standard: GB/T 17418.1
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 specifies the geochemical samples platinum, determination of palladium and gold. This section applies to the rock containing platinum platinum group elements, determination of palladium and gold. Also applies to the determination of stream sediment geochemical samples. Not available for chromite ore platinum, determination of palladium and gold. Measurement range, quality score, said: Platinum 0. 2ng/g ~ 100ng/g, palladium 1ng/g ~ 100ng/g, gold 0. 1ng/g ~ 100ng/g.

GB/T 17418.6-2010: Methods for analysis of noble metals in geochemical samples -- Part 6: Determination of platinum, palladium and gold content -- Preconcentration by fire assay-emission spectrometry

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Methods for analysis of noble metals in geochemical samples Part 6. Determination of platinum, palladium and gold content Preconcentration by fire assay-emission spectrometry. ICS 73.060 D46 National Standards of People's Republic of China Replacing GB/T 17418.6-1998 Analysis of noble metals in geochemical samples Part 6. platinum, palladium and gold contents - Fire Assaying enrichment - Emission Spectrometry Part 6. Determinationofplatinum, paladiumandgoldcontent- 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 6. This Part replaces GB/T 17418.6-1998 "noble metals in geochemical samples analysis fire assay enrichment - emission spectroscopy measurement method Set Platinum Palladium. " This section compared with the GB/T 17418.6-1998, the main changes are as follows. --- Increased warning; --- Clearly indicate the mass fraction measurement range; --- Instrument adds balance; --- Specification standard noun; --- The "standard sample" to "standard material"; --- Amendments and supplements the results of the calculation formula; --- Modified proportional representation ingredients. --- Change some sequence of reagents and samples sulfide bake conditions. Appendix A of this section is an informative annex. 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 is responsible for drafting. National geology test center. This section is drafted. Zhejiang Institute of Geology and Mineral Resources. The main drafters of this section. Zheng deposit Jiang Hu Yongping, Luding Rong. This part of the standard replaces the previous editions are. --- GB/T 17418.6-1998. Analysis of noble metals in geochemical samples Part 6. platinum, palladium and gold contents - Fire Assaying enrichment - Emission 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 of platinum, palladium and gold determination. This section applies to rocks containing platinum group elements platinum, palladium and gold determination, but also for stream sediment geochemical samples and other measurements set. Not for the determination of chromite ore of platinum, palladium and gold. Measurement range, mass fraction, said. Platinum 0.2ng/g ~ 100ng/g, palladium 1ng/g ~ 100ng/g, gold 0.1ng/g ~ 100ng/g.

2 Normative references

The following documents contain provisions which, through reference GB/T 17418 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 17418.1 precious metal analysis methods General rules and regulations in geochemical samples Principle 3 The sample was mixed with fire assay fluxes, adding 1mg silver at 950 ℃ melt obtained noble metal-containing lead button. Buckle and lead slag after separation 900 ℃ blowing ash containing platinum, palladium, gold and silver alloy grains. Palladium-silver alloy grain loaded electrodes to emission spectrometry of platinum, palladium and gold content at the same time.

4 Reagents

4.1 sodium carbonate, commercially pure, powdered. 4.2 borax Na2B4O7 · 5H2O, industrial pure, powdered. Acetic acid 4.3 (3664). 4.4 Diphenlthiourea. 4.5 nitrate (ρ1.42g/mL, pure class distinctions). 4.6 hydrochloride (ρ1.19g/mL). 4.7 antimony powder (excellent pure). 4.8 strontium carbonate. 4.9 lead oxide (industrial grade). 4.10 activated carbon (particle size of 0.074mm). 4.11 flour (flour generally commercially available). 4.12 graphite (spectroscopically pure, 0.074mm). 4.13 quartz powder (particle size of 0.074mm), after removal of the precious metal king water drying. 4.14 Silver (excellent pure). 4.15 basic lead carbonate 2PbCO3 · Pb (OH) 2, powder. ......

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