| 国家标准方法测定锌精矿中锌的不确定度评定 |
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| 引用本文： | 袁丽丽. 国家标准方法测定锌精矿中锌的不确定度评定[J]. 化学分析计量, 2007, 16(2): 11-13 |
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| 作者姓名： | 袁丽丽 |
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| 作者单位： | 广东韶关冶炼厂质检室,韶关,512024 |
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| 摘 要： | 对沉淀分离EDTA滴定法测定锌精矿中锌含量的测量不确定度来源进行了分析,并对EDTA标准溶液的滴定度、试样的质量、滴定体积、测定过程随机误差等不确定度分量进行了分析和量化,合成标准不确定度和扩展不确定度分别为0.20%和0.40%。
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| 关 键 词： | EDTA滴定法 锌精矿 锌 测量不确定度 |
| 修稿时间： | 2007-01-30 |
EVALUATION OF UNCERTAINTY OF MEASUREMENT OF ZINC IN ZINC CONCENTRATES BY EDTA TITRIMETRY |
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| Yuan Lili. EVALUATION OF UNCERTAINTY OF MEASUREMENT OF ZINC IN ZINC CONCENTRATES BY EDTA TITRIMETRY[J]. Chemical Analysis And Meterage, 2007, 16(2): 11-13 |
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| Authors: | Yuan Lili |
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| Abstract: | The main sources of uncertainty of measurement for zinc content in zinc concentrates by EDTA titrimetry were analyzed,and the components of uncertainty of measurement such as titer of stanndard solution, quaulity of sample, titration volume, random error of determination were analyzed and calculated. The combined standard uncertainty and expanded uncertainty were 0.20% and 0.40% respectively. |
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| Keywords: | EDTA titrimetry zinc concentrate zinc uncertainty of measurement |
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