摘要
利用Zn2+在交流示波图上有敏锐切口,用EDTA滴定,以Zn2+的切口消失指示终点,直接简便,快速地测定了甘草锌及其制剂中的锌的含量。原料药及胶囊剂回收率分别为99.70%和99.34%。
This paper developed a new titration method for the determination of zinc in zinc glycyrrhizate.The end point of this method was indicated by the change in the oscillopolarogram of zinc,The established method was simple and rapid compared with the official one and was successfully employed to the determinzation of zinc in zinc glycyrrhizate and its capsule preparation.
出处
《华西药学杂志》
CAS
CSCD
北大核心
1996年第3期173-174,共2页
West China Journal of Pharmaceutical Sciences
关键词
甘草锌
锌
示波极谱
Zinc Zinc glycyrrhizate Oscillopolarographic titration