| 电位法测定循环水中的氯离子 |
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| 引用本文： | 张雨青.电位法测定循环水中的氯离子[J].光谱实验室,2012,29(3):1659-1662. |
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| 作者姓名： | 张雨青 |
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| 作者单位： | 盐城工学院应用化学系 江苏省盐城市迎宾大道9号 224051 |
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| 摘 要： | 利用氯离子选择性电极法测定循环水中氯离子含量。该方法以氯离子选择性电极为指示电极,应用校准曲线直接测定循环水中氯离子浓度。实验考察了SO42-、HCO-3、PBTCA、HEDP、DCCNa等循环水中干扰因素及pH、温度等测定条件对测定的影响。该方法测量精度的相对标准偏差RSD为1.8%(n=8);加标回收率在95.0%—104%之间,平均回收率为99.1%,加标回收率相对标准偏差RSD为4.0%(n=5)。
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| 关 键 词： | 氯离子 选择性电极 循环水 电位法 |
Determination of Chloride in Circulating Water by Electronic Potential Method |
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| ZHANG Yu-Qing.Determination of Chloride in Circulating Water by Electronic Potential Method[J].Chinese Journal of Spectroscopy Laboratory,2012,29(3):1659-1662. |
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| Authors: | ZHANG Yu-Qing |
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| Institution: | ZHANG Yu-Qing(Department of Applied Chemistry,Yancheng Institute of Technology,Yancheng,Jiangsu 224051,P.R.China) |
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| Abstract: | A method for determination of chloride in industrial circulating water by chloride selective electrode was established.The chloride selective electrode was used as indicator electrode.Method of calibration curve was applied to determining concentration of chloride.The effects of SO2-4,HCO-3,PBTCA,HEDP,DCCNa,pH and temperature on the determination were discussed.The relative standard deviation(RSD) of this method is 1.8%(n=8),recovery is 95.0%—104.1%,the average recovery is 99.1%,RSD of recovery is 4.0%. |
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| Keywords: | Chloride Ion Selective Electrode Circulating Water Potentiometry |
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