| 氢化物原子荧光光度法测定食品中砷的不确定度评定 |
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| 引用本文： | 陈丽丽,张春玲,柳英刚.氢化物原子荧光光度法测定食品中砷的不确定度评定[J].实用预防医学,2007,14(5):1554-1556. |
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| 作者姓名： | 陈丽丽 张春玲 柳英刚 |
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| 作者单位： | 1. 江苏省镇江市疾病预防控制中心,江苏,镇江,212003
2. 江苏省镇江市食品药品监督局 |
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| 摘 要： | 目的探讨氢化物原子荧光光度法测定食品中砷的不确定度评定方式。方法依据JJF1059-1999建立数学模型,合成不确定度。结果当食品中砷含量为0.22mg/kg时,合成不确定度为0.008mg/kg,扩展不确定度为0.02mg/kg。结论本评定过程清晰合理,主要影响因素不遗漏、不重复,适用于原子荧光光度法的不确定度评定。
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| 关 键 词： | 原子荧光光度法 砷 不确定度 |
| 文章编号： | 1006-3110（2007）05-1554-03 |
| 收稿时间： | 2007-06-05 |
| 修稿时间： | 2007年6月5日 |
Evaluation of Uncertainty in Measurement of Arsenic Content in Foods by Hydride Generator- atomic Fluorescence Spectrometry |
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| CHEN Li-li,ZHANG Chun-ling,LIU Ying-gang.Evaluation of Uncertainty in Measurement of Arsenic Content in Foods by Hydride Generator- atomic Fluorescence Spectrometry[J].Practical Preventive Medicine,2007,14(5):1554-1556. |
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| Authors: | CHEN Li-li ZHANG Chun-ling LIU Ying-gang |
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| Institution: | Zhenjiang Municipal Center for Disease Control and Preven- tion, Zhenjiang 212000, Jiangsu, China |
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| Abstract: | Objective To study the assessment style of uncertainty in measurement of arsenic content in foods by the hydride generator-atomic fluorescence spectrometric method. Method According to JJF 1059-1999, the mathematic model was established and the uncertainty was synthesized. Results When the content of arsenic in foods was 0.22 mg/kg, the combined uncertainty was 0.008 mg/kg, and the expanded uncertainty was 0.02 mg/kg. Conclusions The judging process of this method is clear and rational, without missing and repeating any main influential factors, so that it is applicable to assess the uncertainty in measurement by the method of hydride generator-atomic fluorescence spectrometry. |
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| Keywords: | Hydride generator-atomic fluorescence spectrometry Arsenic Uncertainty |
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