| 石墨炉原子吸收光谱法测定牡蛎中铅浓度的不确定度评定 |
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| 引用本文： | 汪慧,江天久,白燕. 石墨炉原子吸收光谱法测定牡蛎中铅浓度的不确定度评定[J]. 光谱实验室, 2011, 28(2): 907-910 |
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| 作者姓名： | 汪慧 江天久 白燕 |
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| 作者单位： | 暨南大学生命科学技术学院,广州市黄埔大道西601号,510632 |
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| 基金项目： | 国家高技术研究发展计划 |
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| 摘 要： | 据国际"测量不确定度表示导则ISD:1993E"的要求,对石墨炉测定牡蛎中铅浓度的结果进行了不确定度评定.结果表明,牡蛎中铅的含量为(0.480±0.008)mg/kg.标准溶液的配制,校准曲线拟合线性方程和重复测定是测量不确定度的主要来源,其中标准溶液的配制产生的不确定度影响最大.
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| 关 键 词： | 不确定度 石墨炉原子吸收光谱法 铅 |
Evaluation on Uncertainty of Determination of Lead in Oysters by Graphite Furnace Atomic Absorption Spectrometry |
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| WANG Hui,JIANG Tian-Jiu,BAI Yan. Evaluation on Uncertainty of Determination of Lead in Oysters by Graphite Furnace Atomic Absorption Spectrometry[J]. Chinese Journal of Spectroscopy Laboratory, 2011, 28(2): 907-910 |
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| Authors: | WANG Hui JIANG Tian-Jiu BAI Yan |
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| Affiliation: | WANG Hui JIANG Tian-Jiu BAI Yan(College of Life Science and Technology,Jinan University,Guangzhou 510632,P.R.China) |
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| Abstract: | The uncertainty of the determination of the content of lead in oysters by graphite furnace atomic absorption spectrometry was evaluated according to ＂guide to the expression of uncertainty in measurement（ISO：1993 E）＂.The content of lead in oysters was 0.480±0.008mg/kg.The preparation of standard solutions,the fitted linear regression equation for the standard curve and the repeated measurements were the main sources of uncertainty,and preparation of standard solutions had the most effect on the uncertainty. |
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| Keywords: | Uncertainty Graphite Furnace Atomic Absorption Spectrometry Lead |
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