摘要
利用非离子表面活性剂钡络合物与磷钼酸生成沉淀的反应,用示波极谱法测定过剩的磷钼酸,从而间接测定非离子表活剂含量.测定范围为0.1～2.6μg/mL,回收率达93%。
An oscillopolarographic method for the determination of polyoxyethylene non-ionic surfactants has been developed, in which the precipitation reaction between barium complex of nonionic surfactants and molybdophosphoric acid is utilized. Excess acid is added to a preconcentrated water sample and the unreacted acid is subsequently determined by oscillopolarography. The optimum content of nonionic surfactants in the water sample should be in the range of 0.1～2.6μg/mL. The recovery is 93%.
出处
《北京服装学院学报（自然科学版）》
CAS
北大核心
1989年第1期81-86,共6页
Journal of Beijing Institute of Fashion Technology：Natural Science Edition
关键词
示波极谱法
表面活性剂
污水
分析
oscilloscopic polarography
non-ionic surfactants
sewage analysis
