| 原子荧光法测定土壤中总汞不确定度的评定 |
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| 引用本文： | 陈武军,王珊,张玎,曹璐.原子荧光法测定土壤中总汞不确定度的评定[J].化学分析计量,2012,21(5):16-18. |
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| 作者姓名： | 陈武军 王珊 张玎 曹璐 |
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| 作者单位： | 1. 内江市农产品(畜产品)质量检测中心,四川内江,641000
2. 内江师范学院地理与资源科学学院,四川内江,641112 |
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| 基金项目： | 内江师范学院本科教学工程实验示范中心项目（XSJ201103）;内江师范学院青年教师项目（12NJZ14） |
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| 摘 要： | 评定了原子荧光法测定土壤中总汞的不确定度.分析了样品从制备到测试的整个过程中各环节对测定结果不确定度的影响,结果表明,影响测定结果相对标准不确定度的最大因素是样品制备过程,其次是重复性条件下的标准偏差,标准物质引入的不确定度最小.在规定条件下,测定结果为(0.146±0.012) mg/kg(k=2).
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| 关 键 词： | 原子荧光法 土壤 总汞 不确定度 |
Uncertainty Evaluation of Determination of the Total Mercury in Soil by Atomic Fluorescence Spectrometry |
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| Chen Wujun
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Wang Shan
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Zhang Ding
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Cao Lu.Uncertainty Evaluation of Determination of the Total Mercury in Soil by Atomic Fluorescence Spectrometry[J].Chemical Analysis And Meterage,2012,21(5):16-18. |
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| Authors: | Chen Wujun Wang Shan Zhang Ding Cao Lu |
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| Affiliation: | 1 ( 1. Neijiang Quality Inspection Center for Agricultural Products, Neijiang 641000, China; 2. College of Geography and Resource Sciences, Neijiang Normal University, Neijiang 641112, China) |
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| Abstract: | The measurement uncertainty of total mercury content in soil determined by atomic fluorescence spectrometry was evaluated. The effects on the measurement result were analysized from sample preparing to the determining, which showed that the sample preparation process was the main factor to affect the uncertainty, followed by standard deviation under the repetitive condition and the standard material. Under specified conditions, the detection result was （0146 ± 0.012） rng/kg （ k=-2 ）. |
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| Keywords: | atomic fluorescence spectrometry soil total mercury uncertainty |
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