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| GFAAS测定烟叶制品中重金属铅的不确定度评定 | |
| 引用本文： | 黄淑芳,李晓忠,汪修奇,沈丽红,王超. GFAAS测定烟叶制品中重金属铅的不确定度评定[J]. 光谱实验室, 2011, 28(6): 3271-3276 |
| 作者姓名： | 黄淑芳 李晓忠 汪修奇 沈丽红 王超 |
| 作者单位： | 1. 长沙环境保护职业技术学院环境监测 系长沙市雨花区井圭路10号410004 2. 湖南省烟草专卖局质量检测站 长沙市芙蓉南路一段628号410007 |
| 摘 要： | 通过石墨炉原子吸收光谱法重复测定烟叶制品中的Pb,建立不确定度评定数学模型,系统分析和量化不确定度各分量。分析了测量过程中的不确定度主要来源于样品质量测量引入的不确定度分量、样品水分测量引入的不确定度分量、样品溶解液体积引入的不确定度分量、样品浓度测量引入的不确定度分量、样品测量重复性引入的不确定度分量,当Pb平均含量为2.8177μg/g时,评定其扩展不确定度为0.1994μg/g。 |
| 关 键 词： | 石墨炉原子吸收光谱法 烟叶制品 铅 不确定度 |
Uncertainty Evaluation of Determination of Lead in Tobacco Products by GFAAS |
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| HUANG Shu-Fang,LI Xiao-Zhong,WANG Xiu-Qi,SHEN Li-Hong,WANG Chao. Uncertainty Evaluation of Determination of Lead in Tobacco Products by GFAAS[J]. Chinese Journal of Spectroscopy Laboratory, 2011, 28(6): 3271-3276 | |
| Authors: | HUANG Shu-Fang LI Xiao-Zhong WANG Xiu-Qi SHEN Li-Hong WANG Chao |
| Affiliation: | HUANG Shu-Fang LI Xiao-Zhonga WANG Xiu-Qia SHEN Li-Hong WANG Chaoa(Department of Environmental Monitoring,Changsha Environmental Protection College,Changsha 410004,P.R.China)a(Station of Quality Testing,Hunan Province Tobacco Company,Changsha 410007,P.R.China) |
| Abstract: | Through a repeated measurement of lead in tobacco products by graphite furnace atomic absorption spectrometry(GFAAS),the mathematic model of uncertainty evaluation was established,and the each portion of the uncertainty was systematically analyzed and estimated.The main sources of the uncertainty in the measurement process included the uncertainty component of sample quality measurement,the uncertainty component of sample moisture measurement,the uncertainty component of sample solution volume,the uncertain... |
| Keywords: | GFAAS Tobacco Products Lead Uncertainty |
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