电位滴定法测定液体中的微量水分

Measuring Amount of Moisture in Liquid with Potentiometer Titration

本文针对传统的费休法测定微量水分时准确度、精确度均较差的情况,改用双铂电极,电位滴定法指示终点,直接测定样品中水分,可以检测ppm级的水分,达到了质量控制中相对精确测定微痕量水分的要求。

It usually lacks accuracy and precis ion in measuring the amount of moistu re in the samples with the traditional method -C.Fisc her.Therefore a new method is introd uced in the paper by using two -Pt electrodes,potentiometer t itration,indication end -point to c alculate the amount of moisture in ppm pole.The calculated results ind icate that this novel method is excellent in both computing accuracy and amount of calculation required.