GB/T 17418.5-2010Methods for analysis of noble metals in geochemical samples - Part 5: Determination of ruthenium and osmium content - Separationby distillation-catalytic spectrophotometric method (English PDF)
地球化学样品中贵金属分析方法 第5部分：钌量和锇量的测定 蒸馏分离-催化分光光度法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
November 10, 2010
Implementation date
February 1, 2011
Scope
GB/T 17418.5-2010 is the English-translated version of 地球化学样品中贵金属分析方法 第5部分：钌量和锇量的测定 蒸馏分离-催化分光光度法.
GB/T 17418.5-2010 is the Chinese standard "Methods for analysis of noble metals in geochemical samples - Part 5: Determination of ruthenium and osmium content - Separationby distillation-catalytic spectrophotometric method".
Its scope clause reads: GB/T 17418 provisions of this part of the geochemical samples determination of ruthenium, osmium. This section applies to ruthenium, osmium determination containing platinum group elements ultrabasic rocks and other geological material.
Measurement range, mass fraction, said. 1ng/g ~ 1µg/g. Its clauses include reagents.
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Document preview — GB/T 17418.5-2010
National Standard of the People's Republic of China
- ICS
- 73.060
- Classification
- D 46
- Replacing
- GB/T 17418.5-1998
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 4 Reagents
- 4.2 sulfate (11)
1 Scope
GB/T 17418 provisions of this part of the geochemical samples determination of ruthenium, osmium.
This section applies to ruthenium, osmium determination containing platinum group elements ultrabasic rocks and other geological material. Measurement range, mass fraction, said.
1ng/g ~ 1µg/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
Sample after oxidation of the molten sodium, acidified with sulfuric acid, potassium permanganate as oxidant that generate volatile ruthenium and osmium tetroxide is distilled
Thereby separating out and associated elements. Using hydrochloric acid - ethanol - sulfuric acid solution as osmium, ruthenium separating agent and reducing the absorption of ruthenium. When the first steam
After absorption tube was boiled, steamed osmium tetroxide is absorbed into the second tube by a reduction of arsenic trioxide absorption. The use of ruthenium and osmium of Ce
Catalysis (IV) -As (III) system, respectively, ruthenium, osmium spectrophotometry.
After separation by distillation, a halogen element determination of influence. Mercuric sulphate can be eliminated.
When the fixed time method, we can determine the content of < 50ng/g ruthenium or osmium; when using a fixed concentration method can determine the content of> 50ng/g of
Ruthenium, osmium.
4 Reagents
4.1
sulfate (rho1.84g/mL).
4.2 sulfate (11)
Warning --- improper dilution risk prone.
Sulfuric acid 4.3 c (H2SO4) = 1mol/L.
4.4
hydrochloride (rho1.19g/mL).
4.5
ethanol.
4.6
sodium chloride solution w (NaCl) = 20%.
4.7
sodium peroxide.
4.8
sodium hydroxide.
4.9
trioxide.
4.10
mercury sulfate.
4.11
ammonium cerium {Ce (SO4) 2 · 2 (NH4) 2SO4 · 4H2O}.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 17418.5
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 17418.5-2010 | Methods for analysis of noble metals in geochemical samples - Part 5: Determination of ruthenium and osmium content - Separationby distillation-catalytic spectrophotometric method | current edition | Current |
| GB/T 17418.5-1998 | Methods for analysis of noble metals in geochemical samples - Part 5: Determination of ruthenium and osmium content - Separationby distillation-catalytic spectrophotometric method | previous edition | Superseded |
This page sells the current edition, GB/T 17418.5-2010. Earlier editions are listed for reference only.
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Related Standards
GB/T 17418.1-2010 — Methods for analysis of noble metals in geochemical samples - Part 1: General rules and regulations
GB/T 17418.2-2010 — Methods for analysis of noble metals in geochemical samples - Part 2: Determination of platinum and rhodium content-Preconcentration by thiourea-catalytic polarographic method
GB/T 17418.3-2010 — Methods for analysis of noble metals in geochemical samples - Part 3: Determination of palladium content - Preconcentration by thiourea - graphite furnace atomic absorption spectrophotometric method
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