| 离子选择电极法测定水中氟化物质量控制指标研究 |
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| 引用本文： | 彭刚华,吴志强,乔支卫,夏新,米方卓,王伟,陈表娟,尹辉.离子选择电极法测定水中氟化物质量控制指标研究[J].中国环境监测,2012,28(5):124-127. |
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| 作者姓名： | 彭刚华 吴志强 乔支卫 夏新 米方卓 王伟 陈表娟 尹辉 |
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| 作者单位： | 江西省环境监测中心站, 江西 南昌 330029;江西省环境监测中心站, 江西 南昌 330029;江西师范大学, 江西 南昌 330022;中国环境监测总站, 北京 100012;成都市环境监测中心站, 四川 成都 610072;河南省环境监测中心站, 河南 郑州 450004;海南省环境监测中心站, 海南 海口 570206;成都市环境监测中心站, 四川 成都 610072 |
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| 基金项目： | 环保公益性行业科研专项项目(200809140) |
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| 摘 要： | 通过全国多家实验室的大量监测数据,研究分析了离子选择电极法测定水中氟化物的质量控制指标。研究表明,在0.5～4.5 mg/L范围内同一标准样品多次测定的质量控制指标为:室内相对标准偏差(RSD)≤4.0%,室间相对标准偏差(RSD’)≤8.0%,相对误差(RE)≤±10.0%。在0.06～7.0 mg/L范围内实际样品平行双样测定质量控制指标为:相对偏差(RD)≤5.0%。加标回收率范围为90%～110%。
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| 关 键 词： | 氟化物 离子选择电极法 质量控制指标 |
| 收稿时间： | 2010/12/21 0:00:00 |
| 修稿时间： | 2011/1/25 0:00:00 |
The Quality Control Index on the Ion-Selective Electrode Method For the Analysis of Fluoride in Water |
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| PENG Gang-hu,WU Zhi-qiang,QIAO Zhi-wei,XIA Xin,MI Fang-zhuo,WANG Wei,CHEN Biao-juan and YIN Hui.The Quality Control Index on the Ion-Selective Electrode Method For the Analysis of Fluoride in Water[J].Environmental Monitoring in China,2012,28(5):124-127. |
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| Authors: | PENG Gang-hu WU Zhi-qiang QIAO Zhi-wei XIA Xin MI Fang-zhuo WANG Wei CHEN Biao-juan and YIN Hui |
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| Institution: | Jiangxi Province Environmental Monitoring Centre, Nanchang 330029, China;Jiangxi Province Environmental Monitoring Centre, Nanchang 330029, China;Jiangxi Normal University, Nanchang 330022, China;China National Environmental Monitoring Centre, Beijing 100012, China;Chengdu Environmental Monitoring Centre, Chengdu 610072, China;Henan Province Environmental Monitoring Centre, Zhengzhou 450004, China;Hainan Province Environmental Monitoring Centre, Haikou 570206, China;Chengdu Environmental Monitoring Centre, Chengdu 610072, China |
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| Abstract: | On the basis of a large number of monitoring data from many laboratories nationwidely,we analyzed the quality control index of the fluoride,and compared with the QC index in interrelated references. Studies indicated that the RSD(within-laboratory relative standard deviation) control limit of standard samples was less than 4.0%,RSD'(inter-laboratory relative standard deviation) was less than 8% and the relative error was controded within 10%when the concentration was beteen 0.5 mg/L and 4.5 mg/L. Relative deviation of actual samples which concentration was between 0.06 mg/L and 7.0 mg/L was less than 5%.The correspounding recovery rates can be ranged between 90% and 110%. |
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| Keywords: | fluoride ion-selective electrode method the QC index |
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