| 石墨炉原子吸收法测定大米中镉含量的不确定度评定 |
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| 引用本文： | 张亚冬,韩北琦.石墨炉原子吸收法测定大米中镉含量的不确定度评定[J].河南工业大学学报(自然科学版),2012,33(2):74-77. |
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| 作者姓名： | 张亚冬 韩北琦 |
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| 作者单位： | 哈尔滨市粮食研究所,黑龙江哈尔滨,150070 |
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| 摘 要： | 对石墨炉原子吸收法测定大米中镉的测试结果的不确定度进行评定,分析和量化了影响测量结果的系统效应、随机效应的不确定度分量.结果表明:当镉含量为0.263 mg/kg时,扩展不确定度为0.026 mg/kg( k=2).
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| 关 键 词： | 原子吸收 大米 镉 不确定度 |
EVALUATION OF UNCERTAINTY OF DETERMINATION OF Cd IN RICE BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY |
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| ZHANG Ya-dong
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HAN Bei-qi.EVALUATION OF UNCERTAINTY OF DETERMINATION OF Cd IN RICE BY GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY[J].Journal of Henan University of Technology Natural Science Edition,2012,33(2):74-77. |
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| Authors: | ZHANG Ya-dong HAN Bei-qi |
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| Affiliation: | (Food Research Institute of Harbin,Harbin 150070,China) |
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| Abstract: | In this paper,we evaluated the uncertainty of the determination result of Cd content in rice by graphite furnace atomic absorption spectrometry,analyzed and quantified the uncertainty components of the system effect and the random effect influencing the measurement result.The results showed that the expanded uncertainty was 0.026 mg/kg(k=2) when the Cd content was 0.263 mg/kg. |
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| Keywords: | atomic absorption rice Cd uncertainty |
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