一种适用于药物电位滴定的石墨涂膜电极的研制

GRAPHITE COATED MEMBRANE ELECTRODE USED AS AN INDICATOR ELECTRODE IN POTENTIOMETRIC TITRATION OF MEDICINES

介绍邻苯二甲酸二丁（辛）酯为增塑剂的石墨涂膜电极。可作为药物电位滴定的通用指示电极，制作方便，测定药物含量简便快速。

Preparation of a graphite electrode coated with membrane containing polyvinyl chloride and dibutyl phthalate (or dioctyl phthalate) as the plasticizer was described. This electrode can be used as an indicator electrode in potentiometric titration of various drug substances and their pharmaceutical preparations with sodium tetraphenylborate standard solution to give an accurate and sharp end point jump.