新疆师范大学学报（自然科学版）Issue(2)：27-31,5.
泡塑吸附-石墨炉原子吸收光谱法测定勘查地球化学样品中痕量金
Determination of Trace Gold in Geochemical Exploration Samples by GFAAS after Preconcentration with Polyurethane Foam
王頔 1汪君1
作者信息
- 1. 核工业二一六大队理化测试中心，新疆 乌鲁木齐830011
- 折叠
摘要
Abstract
In this work, adsorption features of polyurethane foam for gold in geochemical exploration sample were studied in detail. A method for the determination of trace gold in geoche-mical exploration samples in the la-boratory by graphite furnace atomic absorption spectrometry( GFAAS) after preconcentration with polyurethane foam has been developed. The conditions of experiment were optimized by dicussing the effect of operating parameters of GFAAS, the content of aqua regia and Fe3+, acidity and the time of disengagement. This method has been applied to the determination of trace gold in geological standard reference samples GAu-10b and GAu-8a and the results indicated that it can in good agreement with verified values of precision of 4.98% and 30.23%( RSD,n= 10) , re-spectively. Furthermore, it was also found that the limit of method is 0.499 ng/g.关键词
金/分析/石墨炉原子吸收光谱法/勘查地球化学样品Key words
Gold/Analysis/Graphite furnace atomic absorpt ion spectrometry( GFAAS)/Geochemical explora-tion sample分类
数理科学引用本文复制引用
王頔,汪君..泡塑吸附-石墨炉原子吸收光谱法测定勘查地球化学样品中痕量金[J].新疆师范大学学报（自然科学版）,2014,(2):27-31,5.
