Nambiar O G, Gosavi K, Ravindranathan T
National Chemical Laboratory, Pune, India.
Analyst. 1991 Oct;116(10):1011-2. doi: 10.1039/an9911601011.
A poly(vinyl chloride) matrix membrane ion-selective electrode for the determination of the denatonium ion based on the denatonium salt of tetraphenylborate is described. The response characteristics of the electrode for the denatonium ion and for several quaternary ammonium compounds were studied. The potentiometric determination of denatonium benzoate in rapeseed oil in the range 1-10 ppm agreed to within +/-5% of the spiked amounts. The application of the electrode to the titrimetric determination of several quaternary ammonium compounds using sodium tetraphenylborate as the titrant is also described.
描述了一种基于四苯基硼酸盐的地那铵盐用于测定地那铵离子的聚氯乙烯基质膜离子选择性电极。研究了该电极对地那铵离子和几种季铵化合物的响应特性。在1 - 10 ppm范围内对菜籽油中苯甲酸地那铵的电位测定结果与加标量的偏差在±5%以内。还描述了该电极使用四苯基硼酸钠作为滴定剂用于几种季铵化合物的滴定测定。
