Test Quality Risks and Countermeasure of Mineralized Geochemical Samples
详细信息
- 责任者：Liu Xiangdong (Research Institute ; Bureau of Nonferrous Metal Geological Exploration of Jilin Province ; Changchun 130012 ; China)
- 刊名：Jilin Geology
- 出版年：2013
- 卷期：32(3)
- 关键词：铅 ; lead ; 火焰原子吸收光谱法 ; flame atomic absorption spectrophotometry ; 样品制备 ; sample preparation
- 页码：p.71-73
- 图表：2 tables, 3 refs.
- 分类号：0900
- issnNo：ISSN1001-2427
- isbnNo：CN22-1099/P
摘要
Because of the content of certain element in mineralized sample is high,which causes interference to the measurement of other elements,the quality parameters not out-of-tolerance,there is omissions and false positive risk.Aiming at lead test of 10 mineralized samples of 1:50000 regional geological exploration in Hulunbuir Bajianfang of Inner Mongolia Autonomous Region,performed method comparison experiment.High calcium samples interfered the determination of lead by atomic absorption spectrometry,test results are much higher than the true value.Suggest analyzing geochemical samples in laboratory,should use different analysis methods on internal analysis and abnormal spot check,to avoid false positive and omissions risk.
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