Foam Enrichment and Separation: Determination of Trace Gold in Geochemical Samples by Graphite Furnace Atomic Absorption Method
详细信息
- 责任者：Yang Jinyan (No.608 Team ; Bureau of Nonferrous Metals Geological Exploration of Jilin Province ; Jiutai 130507 ; China) ; Guan Yikao
- 刊名：Jilin Geology
- 出版年：2013
- 卷期：32(4)
- 关键词：原子吸收光谱 ; atomic absorption spectra ; 金 ; gold
- 页码：p.113-114,123
- 图表：3 tables, 3 refs.
- 分类号：0900
- issnNo：ISSN1001-2427
- isbnNo：CN22-1099/P
摘要
The samples was decomposed with 1＋1 aqua regia,in aqua regia medium,gold was soaked with foam.With water bath heating dissolved in PTFE plastic bottle,released gold with 1% thiourea complexing,and then in the graphite furnace atomic absorption spectrophotometer,determined gold by automatic sampling method.The method has been proved in geological standard reference samples and the results are in good agreement with certified values.