| 原子荧光法测定地表水中硒的不确定度评定 |
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| 引用本文： | 龚剑,占永革. 原子荧光法测定地表水中硒的不确定度评定[J]. 安徽农业科学, 2011, 39(5): 2538-2540 |
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| 作者姓名： | 龚剑 占永革 |
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| 作者单位： | 广州大学环境科学与工程学院,广州市污染控制与同位素重点实验室,珠江三角洲水质安全与保护实验室,广东广州510006;广州大学环境科学与工程学院,广州市污染控制与同位素重点实验室,珠江三角洲水质安全与保护实验室,广东广州510006 |
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| 基金项目： | 2009年广东高校优秀青年创新人才培育项目(LYM09107); 2010年广州大学新苗计划项目(1002) |
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| 摘 要： | [目的]解析原子荧光法在检测中的不确定度。[方法]依据测量不确定度评定与表示理论,运用国家标准方法,评定原子荧光法测定地表水中硒的不确定度。[结果]测得地表水样中硒的浓度为1.10μg/L,该法的扩展不确定度U95=0.09μg/L（k=2）。[结论]对合成标准不确定度主要贡献来自仪器分析过程。
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| 关 键 词： | 不确定度 原子荧光法 地表水 硒 |
Evaluation of Uncertainty of Measuring Selenium in Surface Water by Atomic Fluorescence Spectrometry |
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| GONG Jian et al. Evaluation of Uncertainty of Measuring Selenium in Surface Water by Atomic Fluorescence Spectrometry[J]. Journal of Anhui Agricultural Sciences, 2011, 39(5): 2538-2540 |
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| Authors: | GONG Jian et al |
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| Affiliation: | GONG Jian et al (School of Environmental Science and Engineering,Guangzhou University,Guangzhou Key Laboratory of Environmental Pollution Control and Isotope Application,Safety and Protection of the Pearl River Delta Water Quality Laboratory,Guangzhou,Guangdong 510006) |
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| Abstract: | [Objective] The study aimed to analyze the uncertainty in determination using atomic fluorescence spectrometry(AFS).[Method]According to the national standard method,the uncertainty of measuring selenium(Se) in surface water by AFS was evaluated based on the theory of evaluation and expression of uncertainty in measurement.[Method]Se was detected at a concentration of 1.10 μg/L in the surface water,and 0.09 μg/L of the expanded uncertainty,U95(k=2),was obtained in the method.[Conclusion]The result indicated that the combined standard uncertainty mainly derived from instrument analysis. |
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| Keywords: | Uncertainty Atomic fluorescence spectrometry Surface water Selenium |
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