浅谈影响高锰酸盐指数测定的三个因素

Discussion on Three Factors Affecting Permanganate Index Determination

高锰酸盐指数作为反映水体中有机及无机可氧化物质污染的常用指标,也是地表水监测的一个重要指标,但它是一个相对的条件性指标,其测定结果受条件的影响较大。通过试验,考察研究了不同种类的实验室用水、样品的不同保存条件以及K值等因素对高锰酸盐指数测定结果的影响,以提高高锰酸盐指数测定结果的准确性,保证实验分析工作的精密性和科学性。

Permanganate index is a common index to reflect the pollution of organic and inorganic oxidizable substances in water,is also an important indicator for surface water monitoring.But it is a relative conditional index,and its determination results are greatly affected by the conditions.In order to improve the accuracy of permanganate index and ensure the precision and scientificity of experimental analysis,the effects of different kinds of laboratory water,different storage conditions of samples and K value on the determination results of permanganate index were investigated.