【摘要】 采用库仑滴定法测定油田水中的硫离子含量。在pH=5.0的HAc-NaAc缓冲液中,I-在Pt工作电极上电解析出滴定剂I2,I2可定量滴定溶液中的S2-。方法适用于微量、常量分析,相对标准偏差为1.3%(n=10),与碘量法对比,两者结果无显著性差异。该方法具有简便、快速等优点,用于油田水中硫离子的测定,结果满意。更多还原

【Abstract】 Using the determination of sulfur ions in oilfield water by coulometric titration.In the pH = 5.0 HAc-NaAc buffer,iodine ions were oxidized on platinum work electrode,then divalent sulfur ions were quantitatively titrated by the iodine.The method was applicable to micro and constant anlysis.The relative standard deviation was 1.3%(n=10).Compared to the iodometric method,the method was simple and accurate for the determination of sulfur ions in oilfield water.更多还原