科研之友
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摘要
After dissolved in HNO3-HClO4 and the copper matrix was masked with a new nontoxic, pollution free and environment friendly reagent-polyepoxysuccinic acid, the selenium in the brass sample was directly determined without any separation procedures. The method was simple, rapid, accurate, precise and low cost operation. The linear dynamic calibration was 5.0-80.0 mu g/L. The detection limit of the method was 0.29 mu g/L. The relative standard deviation (RSD, n=11) was 2.4%. The recovery rate with standard addition was 97.5%-104.8%.
- 出版日期2013-8
- 单位广西大学
