| 柠檬酸含量测量不确定度的评定 |
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| 引用本文： | 郑玲,李丽华,罗兆飞.柠檬酸含量测量不确定度的评定[J].化学分析计量,2004,13(1):4-6. |
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| 作者姓名： | 郑玲 李丽华 罗兆飞 |
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| 作者单位： | 广西出入境检验检疫局技术中心,南宁,530021;广西出入境检验检疫局技术中心,南宁,530021;广西出入境检验检疫局技术中心,南宁,530021 |
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| 摘 要： | 分析了测定柠檬酸含量测量不确定度的来源，评定了柠檬酸含量测定过程中测量重复性、天平、滴定管、标准溶液浓度等因素对柠檬酸含量测量不确定度的影响，计算得柠檬酸含量测定结果的扩展不确定度为0．36％。在柠檬酸含量的测定过程中，滴定管的准确度是影响柠檬酸含量测量不确定度的主要因素。
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| 关 键 词： | 柠檬酸 含量 测量不确定度 评定 |
| 修稿时间： | 2003年11月5日 |
EVALUATION OF THE UNCERTAINTY OF MEASUREMENT IN THE DETERMINATION OF CITRIC ACID CONTENT |
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| Zheng Ling,Li Lihua,Luo Zhaofei.EVALUATION OF THE UNCERTAINTY OF MEASUREMENT IN THE DETERMINATION OF CITRIC ACID CONTENT[J].Chemical Analysis And Meterage,2004,13(1):4-6. |
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| Authors: | Zheng Ling Li Lihua Luo Zhaofei |
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| Abstract: | The source of the uncertainty of measurement in the determination of citric acid content was analyzed. The influencing factors on the uncertainty of measurement in the determination of citric acid content were evaluated, including repeatability of measurement results, balance, burette, the concentration of standard solution, etc. The expanded uncertainty is 0. 36% . In the process of the determination of citric acid content, the accuracy of the burette is the main factor influencing the uncertainty of measurement in the determination of citric acid content. |
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| Keywords: | citric acid content uncertainty of measurement evaluation |
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