示波滴定法测定甲磺酸加贝酯的含量

Determination of Gabexate Mesilate with the Oscillographic Titration

摘要: 在ｐＨ６．２的醋酸－醋酸钠缓冲液中，甲磺酸加贝酯能与四苯硼钠定量地产生沉淀，过量的四苯硼钠用硫酸亚铊标准液进行回滴定。利用ｄＥ／ｄｔ－Ｅ曲线上四苯硼钠切口的消失指示终点，平均回收率为９９．７２％，ＲＳＤ为０．４５％（ｎ＝６）。

Abstract: The oscillographic titration was applied to measure gabexate mesilate by sodium tetraphenylborate(NaTPB).NaTPB was added to precipitate quantitatively gabexate mesilate from the acetate buffer solution(pH6.2),part of the mixture was filtered,and the exces