摘要
对运用卡尔菲休滴定仪库仑法测定液体石油产品中微量水的简单原理、分析方法的建立与分析流程进行了论述。实验结果表明，该方法测定结果的相对标准偏差为0．66％～1．30％（n=8），用该方法测定3种标准物质，其相对误差不大于2％。该方法分析快速、简便，适用于含有醇类、无机含氧弱酸特殊样品的测定。
The determination principles, method creation, analytical procedures for determination of trace water in liquid petroleum products by Coulometric Karl Fischer titration method were discussed. The relative standard devation of determination was 0.66% -1.30%. Three kinds of reference materials were determined by this method, its relative error was not more than 2%. The method is fast, simple, and suitable for detemination of water content in alcohol samples and inorganic oxygen weak acid. samples.
出处
《化学分析计量》
CAS
2011年第3期60-61,共2页
Chemical Analysis And Meterage
关键词
卡尔菲休
石油
库仑法
滴定
Karl Fischer, petroleum, coulometry, titration
