| 原子吸收光谱法测定首饰镍释放量的不确定度评定 |
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| 引用本文： | 孟建华,曹维宇,王震寰,赫婷婷,郑艳莹.原子吸收光谱法测定首饰镍释放量的不确定度评定[J].分析测试技术与仪器,2012,18(1):29-33. |
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| 作者姓名： | 孟建华 曹维宇 王震寰 赫婷婷 郑艳莹 |
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| 作者单位： | 天津市产品质量监督检测技术研究院,天津,300384 |
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| 基金项目： | 天津市质量技术监督局资助项目《首饰饰品重要安全性能指标及检验方法的研究》，编号：10-14。 |
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| 摘 要： | 通过对原子吸收光谱法(AAS)测定首饰中镍释放量不确定度的评定,建立了该分析过程的相应数学模型,对数学模型中各个参数进行不确定度来源分析.研究结果表明:配制标准液以及标准工作曲线拟合线性方程是不确定度的主要来源.通过计算,首饰中镍释放量的合成标准不确定度为3.02×10-3,当包含因子k=2,置信水平为95％时,扩展不...
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| 关 键 词： | AAS法 镍释放量 首饰 不确定度 |
| 收稿时间： | 2011/11/17 0:00:00 |
| 修稿时间： | 2012/1/18 0:00:00 |
Evaluation of Uncertainty for Determination of Release of Nickel in Jewelry by AAS |
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| MENG Jian-hu,CAO Wei-yu,WANG Zhen-huan,HE Ting-ting and ZHENG Yan-ying.Evaluation of Uncertainty for Determination of Release of Nickel in Jewelry by AAS[J].Analysis and Testing Technology and Instruments,2012,18(1):29-33. |
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| Authors: | MENG Jian-hu CAO Wei-yu WANG Zhen-huan HE Ting-ting and ZHENG Yan-ying |
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| Institution: | (Tianjin Product Quality Inspection Technology Research Institute,TianJin 300384,China) |
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| Abstract: | A mathematic model for the evaluation of the uncertainty of the determination procedure for the release of nickel in jewelry by AAS was established.The uncertainty sources for each of the parameters in the model were analyzed.The results showed that the preparation of standard solutions and the fitted linear regression equation for the calibration were the main sources of uncertainties.The combined standard uncertainty of the release of nickel in jewlery was calculated to be 3.02×10-3 from the experimental data.The expanded uncertainty was 6.04×10-3 μg/（cm2·week） when the confidence level was 95%（k=2）. |
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| Keywords: | AAS release of nickel jewelry uncertainty |
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