快速消解分光光度法测定工业废水COD试剂探讨

Fast Digestion Spectrophotometric Determination of Industrial Wastewater by COD Reagent

快速消解分光光度法[1]测定污水中COD是一种快速高效的分析方法,文章详细介绍了分别用快速消解仪专用试剂和自制试剂测定工业废水中的COD.结果表明,在COD值在40～1200 mg/L范围内,两种试剂测定的结果的线性关系几乎相同,相关系数都能达到1.000,同时都还具有很好的精密度和准确度.

Fast digestion spectrophotometric method for the determination of COD in wastewater is a kind of fast and efficient analytical method; the paper introduces in detail the rapid digestion instrument respectively with special reagent and self-made reagents for the determination of COD in industrial wastcwater. The results show that, the COD value in the range of 40-1200 mg/L, the linear relationship between the two reagents were almost the same, the correlation coefficient can reach l, at the same time also has good precision and accuracy.