氰化物测定中的方法改进

Improvement of Determining Method of Cyanide

《水和废水监测分析方法》一书中规定测定氰化物使用的显色剂吡唑啉酮的溶剂为N,N——二甲基甲酰胺,因该试剂价格比较昂贵,且不是常用试剂,我们试改用乙醇来代替N.N——二甲基甲酰胺。

In'Monitoring And Analysis Method of water and waste water' , N, N - dimethyl sulfoxide is solvent of pyrazolone which is coloration agent used for cyanide determining. But this reagert is too expensive and is not used in common,so we use ethanol as substitute.