| 碘滴定液浓度测量不确定度的评定 |
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| 引用本文： | 陈瑞清,林红华.碘滴定液浓度测量不确定度的评定[J].中国兽药杂志,2006,40(4):55-57. |
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| 作者姓名： | 陈瑞清 林红华 |
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| 作者单位： | 福建省农产品质量安全检验检测中心,福建,福州,350003 |
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| 摘 要： | 应用测量不确定度评定与表达的理论，以标定碘滴定液为例，分析了影响滴定液浓度测量不确定度的因素，包括标定过程中测量重复性、天平、滴定管、基准物纯度等因素，计算得出碘滴定液浓度测定结果的扩展不确定度为0．00018moL／L。分析表明滴定管的准确度是影响滴定液浓度测量不确定度的主要因素。
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| 关 键 词： | 碘滴定液 浓度 测量不确定度 |
| 文章编号： | 1002-1280（2006）04-0055-03 |
| 收稿时间： | 2005-10-09 |
| 修稿时间： | 2005年10月9日 |
Evaluation on the Uncertainty of Measurement Iodine of Solution Concentration |
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| CHEN Rui-qing,LIN Hong-hua.Evaluation on the Uncertainty of Measurement Iodine of Solution Concentration[J].Chinese Journal of Veterinary Drug,2006,40(4):55-57. |
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| Authors: | CHEN Rui-qing LIN Hong-hua |
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| Institution: | Fujian Inspection and Testing Center for Agricultural Product Quality and Safety,Fuzhoa,Fujian 350003; China |
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| Abstract: | The impact factors in the uncertainty of measurement of normal solution contentration were analysed using the theory of assessment and expression of uncertainty monitoring with the example of the determination of iodine solution concentration. The factors effecting on the uncertainty of measurement in the determination of the normal solution concentration were evaluated, including repeatability of measurement results, balance, burette, the purity of standard reagent, etc. The expanded uncertainty was 0. 000 18 mol/L. The results showed that the accuracy of the burette was the main factor influencing the uncertainty of measurement in the determination of normal solution concentration. |
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| Keywords: | iodine solution concentration the uncertainty of measurement evaluation |
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