对二甲氨基苯甲醛分光光度法测定水中水合肼

摘要

在酸性条件下，水合肼与对二甲氨基苯甲醛作用，形成黄色醌式化合物，可用分光光度法对其进行测定。文中主要介绍对二甲氨基苯甲醛分光光度法测定的回收率、相对标准偏差及检出限的复验，并对上海水源水及其出厂水水合肼进行测定。%Hydrazine hydrate can be detected using spectrophotometer,because yellow quinine compound is produced when it reacts with paradime thylaminobenzaldehyde under acidic conditions. In this paper,the recovery rate,relative standard deviation and lowest detection limit of this method were analyzed,and the hydrazine hydrate in the raw water and processed water of three water plants were determined.