| 氢醌滴定法测定金矿石中金的不确定度评定 |
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| 引用本文： | 陈爱平 陈志慧 王苏明 王烨. 氢醌滴定法测定金矿石中金的不确定度评定[J]. 岩矿测试, 2006, 25(4): 360-364 |
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| 作者姓名： | 陈爱平 陈志慧 王苏明 王烨 |
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| 作者单位： | 1. 国土资源部郑州矿产资源监督检测中心,河南,郑州,450012
2. 国家地质实验测试中心,北京,100037 |
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| 基金项目： | 科技部科技基础条件平台建设计划 |
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| 摘 要： | 以氢醌滴定法测定金矿石中贵金属金的实例进行不确定度评定。测量结果的不确定度由配制金标准母液、金标准工作液、氢醌滴定液浓度、称样质量、滴定样品所用氢醌溶液体积等所引入的不确定度分量组成。在对各个不确定度分量进行量化的基础上，通过合成得到测量结果的标准不确定度，再乘以95％置信概率下的扩展因子2，得到测量结果的扩展不确定度。
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| 关 键 词： | 测量不确定度 金 氢醌滴定法 |
| 文章编号： | 0254-5357（2006）04-0360-05 |
| 收稿时间： | 2005-11-28 |
| 修稿时间： | 2005-11-282006-03-26 |
Uncertainty Evaluation of Measurement Results of Gold in Auriferous Ore Samples by Hydroquinone Titration |
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| CHEN Ai-ping,CHEN Zhi-hui,WANG Su-ming,WANG Ye. Uncertainty Evaluation of Measurement Results of Gold in Auriferous Ore Samples by Hydroquinone Titration[J]. Rock and Mineral Analysis, 2006, 25(4): 360-364 |
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| Authors: | CHEN Ai-ping CHEN Zhi-hui WANG Su-ming WANG Ye |
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| Affiliation: | 1. Zhengzhou Supervision and Analytical Center for Mineral Resources, The Ministry of Land and Resouces, Zhengzhou 450012, China; 2. National Research Center of Geoanalysis, Beijing 100037, China |
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| Abstract: | The uncertainty of gold content determined with hydroquinone titration has been evaluated in this example. The uncertainty of measuring results comes from the fractions of preparation of the standard gold solution and its further dilution to the working solution, sample weight, hydroquinone titration solution, volume of hydroquinone solution used in titration, etc. Based on the evaluation of each fraction the standard uncertainty of measuring results is obtained via synthesis of the uncertainties from the fractions. The extended uncertainty can be calculated via multiplying synthetic value by extended factor of 2 under the confidence probability of 95%. |
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| Keywords: | measurement uncertainty gold hydroquinone titration |
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