水中阴离子洗涤剂测定方法的改进

根据实际工作经验，本文对标准曲线绘制方法和有机溶剂用量进行了减半改进，优化了显色剂的用量及萃取分析条件，其相对误差在0．5％以内，加标回收率在97．8％-98．5％之间，精密度和准确度均达到了要求，和标准方法相比测定结果无显著差异。

Ameliorated Measurement method of Anion Scour Dissolved in Wastewater

Based on the experiences accumulated in practical work, a kind of scour measuring method ameliorated was introduced, by which the carve protraction can be predigested as well as the dosage of organic solvent use as reagent chromogenie reagent can be served by 50% with relative error being below 0.5% and the rate of recovery ranging 97.8% - 98.5%, no obvious differences in analytical data were shown between routine method and ameliorated method.