| 石墨炉原子吸收光谱法测定黄瓜中铅含量的测量不确定度分析 |
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| 引用本文： | 刘长勇,魏向利,王东建.石墨炉原子吸收光谱法测定黄瓜中铅含量的测量不确定度分析[J].农产品加工．学刊,2011(8):104-106. |
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| 作者姓名： | 刘长勇 魏向利 王东建 |
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| 作者单位： | 农业部食品质量监督检验测试中心,新疆石河子,832000 |
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| 摘 要： | 通过黄瓜中铅含量的重复性测试结果,计算实验标准差,分析并计算了测试过程中系统效应产生的不确定度分量的值,达到了对黄瓜中铅含量的测量不确定度的合理评定,并对合成标准不确定度进行了适度扩展,求出黄瓜中铅含量的安全的扩展不确定度。
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| 关 键 词： | 石墨炉原子吸收光谱法 黄瓜 铅含量 测量不确定度 |
Analysis of Uncertainty of Measurement of GF-AAS Measuring the Lead in Mucumber |
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| Liu Changyong,Wei Xiangli,Wang Dongjian.Analysis of Uncertainty of Measurement of GF-AAS Measuring the Lead in Mucumber[J].Nongchanpin Jlagong.Xuekan,2011(8):104-106. |
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| Authors: | Liu Changyong Wei Xiangli Wang Dongjian |
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| Institution: | Liu Changyong,Wei Xiangli,Wang Dongjian(Supervision and Testing Center of Food Quality,Ministry of Agriculture,Shihezi,Xinjiang 832000,China) |
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| Abstract: | The uncertainty of measurement in the GF-AAS determination of lead content in cucumber is analyzed.The main sources of uncertainty of measurement are determined.On the basis of the mathematical model and measurement process,this paper simplifies the individual uncertainties that systematic effect produces in the course of testing and calculates the value,obtains the combined uncertainty and the expanded uncertainty. |
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| Keywords: | GF-AAS cucumber lead content uncertainty of measurement |
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