摘要
采用微库仑滴定仪测定松节油中微量硫(≤1.0μg/mL)含量,在偏压为165mV,氮气流速为240mL/min,氧气流速为150mL/min工作条件下,该方法的标准偏差为0.023～0.060,变异系数为7.54%～10.17%,样品加标回收率大于83%,具有简便快速等特点。
This paper describes a method of measuring minim total sulfur content(≤1.0 μg/mL) in turpentine by a microcoulomb titrator.The results showed that the standard deviation was 0.023～0.060.The coefficient of variation was 7.54%～10.17%.The recovery rate was over 83% and the method is simple and fast.
出处
《林产化工通讯》
2004年第2期18-20,共3页
Journal of Chemical Industry of Forest Products
关键词
松节油
微量总硫含量
微库仑法
测定
turpentine
minim total sulfur content
microcoulometry
