电位滴定法测定PB-9M中硬脂酰二乙醇胺含量

Determining Amine Value of PB-9M by A Voltametric Titrater

PB-9M试样溶解在冰乙酸溶剂中,以复合非水pH玻璃电极为测量电极,用高氯酸-冰乙酸标准溶液进行电位滴定,测定其中的硬脂酰二乙醇胺,借助于电位突跃确定其反应终点。与容量滴定法相比,该法具有快捷、准确、重现性好等特点,完全可取代传统的容量滴定法。

PB-9M is smelt in the solution. A voltametric titrater is used to determine amine value of the sample. There is a complicate non- water pH electrode in the tester. The titrirate is KCIO4 - alcoholacid standard solution. This method is speedy and accurate over the traditional titrate method. Reproducibility of this method is good and the recovery is high. It is completely supersede to the traditional titrate method.