| 库仑滴定法测定油田水中的硫离子 |
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| 引用本文： | 薛建伟,高岭,李强,蔡清,王玲燕,谢志海.库仑滴定法测定油田水中的硫离子[J].陕西化工,2012(10):1814-1815,1819. |
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| 作者姓名： | 薛建伟 高岭 李强 蔡清 王玲燕 谢志海 |
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| 作者单位： | [1]延长油田股份有限公司横山采油厂,陕西横山719100 [2]西北大学化学与材料科学学院,陕西西安710069 |
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| 基金项目： | 陕西省工业攻关项目（2012K08-08） |
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| 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。
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| 关 键 词： | 硫离子 库仑滴定法 油田水 |
Determination of sulfur ion in oilfield water by coulometric titration |
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| XUE Jian-wei,GAO Ling,LI Qiang,CAI Qing,WANG Ling-yan,XIE Zhi-hai.Determination of sulfur ion in oilfield water by coulometric titration[J].Applied Chemical Industry,2012(10):1814-1815,1819. |
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| Authors: | XUE Jian-wei GAO Ling LI Qiang CAI Qing WANG Ling-yan XIE Zhi-hai |
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| Affiliation: | 1.Hengshan Oil Production Plant,Yanchang Petroleum(Group) Co.,Ltd.,Hengshan 719100,China; 2.College of Chemistry and Materials Science,Northwest University,Xi＇an 710069,China) |
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| 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. |
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| Keywords: | sulfur ions coulometric titration oilfield water |
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