GB/T 17418.4-2010

Active

Methods for analysis of noble metals in geochemical samples - Part 4: Determination of iridium content - Preconcentration by thiourea-catalytic spectrophotometric method

地球化学样品中贵金属分析方法 第4部分：铱量的测定 硫脲富集-催化分光光度法

Standard Type
GBT
ICS
73.060
CCS
D46
Status
Active
Issue Date
2010-11-10
Implementation
2011-02-01
Centralized Committee
自然资源部（国土）
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies a method for determining trace amounts of iridium in geochemical samples, such as rocks, soils, and sediments, using thiourea for preconcentration followed by catalytic spectrophotometric analysis. It is applied in geological exploration and mining laboratories to assess iridium concentrations for mineral resource evaluation and geochemical studies. The method is particularly relevant for analyzing noble metal deposits and conducting environmental geochemical surveys.

Related Standards

GB/T 1819.4-2004 Methodsfor chemical analysis of tin concentrates--Determination of lead content--Flameatomic absorption spectrometric method and EDTA titrimetric method GB/T 1819.7-2004 Methods for chemical analysis of tin concentrates--Determination of bismuth content--Flame atomicabsorption spectrometric method GB/T 1819.3-2004 Methods for chemical analysis of tin concentrates--Determination of iron content--The cerium sulfate titrimetric method GB/T 1819.2-2004 Methods for chemical analysis of tin concentrates--Determination of tin content--The potassium iodate titrimetric method GB/T 1819.5-2004 Methods for chemical analysis of tin concentrates--Determination of arsenic content--The molybdoantimonyarsenate blue spectrophotometric method and the distillation-iodimetric titrimetric method GB/T 1819.13-2004 Methodsfor chemical analysis of tin concentrates--Determination of magnesium oxide andcalcium oxide contents--Flame atomic absorption spectrometric method GB/T 1819.12-2004 Methods for chemical analysis of tin concentrates--Determination of silicon dioxide content--The silicomolybdenum blue spectrophotometric method GB/T 1819.8-2004 Methods for chemical analysis of tin concentrates--Determination of zinc content--Flame atomic absorption spectrometric method
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.