【摘要】 以十六烷基吡啶为滴定剂，以藏花红、亚甲基蓝为指示剂，以氯价为分相溶剂，分别定量测定多种阴离子共存体系中醇醚羧酸盐和其他阴离子的微量双向滴定法。在华姿香波（北京丽源日化公司）中加入５％～８０％醇醚羧酸盐，其测定回收率平均为９７．３％。更多还原

【Abstract】 A simple and rapid method for the determination of aliphatic and phenyl polyoxyethylated carboxylates and other coexisted anionic surfactants bytwo-indicator-two-phase titration bas been described.In the method, hexadecyl pyridinium was used asthe titrant with safranine and methylene blue asthe indicators and chloroform as the solvent for phaseseparation. The average recovery of polyoxyethylatedcarboxylates accounting for 5%～80% of the weightof Huazi shampoo (Beijing Liyuan Daily Use Chemical Products Co. Ltd.)which contains other anionicsurfactants and some organic and inorganic ingredientswas as high as 97. 3 percent.更多还原