摘要
对流动注射法测定地表水中高锰酸盐指数进行了深入研究，优化了仪器的最佳工作参数。其测定结果表明，该方法在标准溶液质量浓度为0～10．8mg／L时工作曲线具有良好的线性，最低检测限为0．0748mg／L，相对标准偏差为0．59％-4．70％，加入标准物质回收率为98．5％。101％。该方法与酸性高锰酸钾法进行比对，其测定结果准确、可靠，无显著性差异。
This paper studied a method that determines permanganate index in the surface water using flow injec- tion analysis（ FIA）, and optimized the optimal working conditions of facilities. Determination results show that the line- arity range for the determination of mercury was found to be 0 - 10.8 mg/L. The lower detection limit was found to be 0.0748 mg,/L,RSD obtained was 0.59 % -4.70 % and with addition of standard substance the recovery was in the range of 98.5 -101%. Compared to acidic permanganate,the test results are precise and reliable,having no obvious inconsistency.
出处
《黄金》
CAS
2013年第10期76-79,共4页
Gold
关键词
流动注射法
高锰酸盐指数
国家标准方法
方法比较
flow injection analysis
permanganate index
the national standard method
methods comparison
