| 余氯离子浓度比色计测定余氯及换算系数确立 |
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| 引用本文： | 王舒婷,田渭花,杏艳,王俊君.余氯离子浓度比色计测定余氯及换算系数确立[J].广州化工,2013(21):122-124. |
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| 作者姓名： | 王舒婷 田渭花 杏艳 王俊君 |
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| 作者单位： | 陕西省环境监测中心站,陕西西安710054 |
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| 摘 要： | 采用便携式余氯(游离氯)、总氯离子浓度比色计测定水中的游离氯,并确立了换算系数。实验证明该方法操作简便,灵敏度高、准确度较好,通过系数换算后,可得到更高的准确度。通过实验得相对标准偏差范围0.07%~1.55%,测定浓度值≤1 mg/L时,换算系数为0.89,浓度值>1 mg/L时,换算系数为1.12,是现场和应急监测比较理想的一种余氯(游离氯)检测方法。
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| 关 键 词： | 余氯(游离氯)、总氯离子浓度比色计 游离氯 换算系数 |
Establishment of Free Chlorine by Free chlorine Ion Concentration Colorimeter and Conversion Coefficient |
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| Affiliation: | WANG Shu -ting, TIAN Wei -hua, XING Yah, WANG Jun -jun (Environmental Monitoring Center Station of Shaanxi Province, Shaanxi Xi＇an 710054, China) |
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| Abstract: | Free chlorine in water was measured by free chlorine and total chlorine ion concentration colorimeter. Conversion coefficient was obtained. This method had simplified operation, good sensitivity and accuracy. Higher accuracy could be obtained by conversion coefficient. The range of variation coefficient was 0. 07% - 1.55%. Conversion coefficient was 0. 89 when concentration ≤1 mg/L, while 1.12 when concentration 〉 1 mg/L. Thus, it was a more ideal method for detecting free chlorine in field and emergency monitoring. |
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| Keywords: | free chlorine total chlorine ion concentration colorimeter free chlorine conversion coefficient |
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