饮用矿泉水中铜的测量不确定度评定  

Uncertainty evaluation of copper in drinking mineral water

作　　者：臧李纳[1] 湛社霞[1] 陈丹妮[1] 孙世宏[1] 张宏[1] 

机构地区：[1]广州市天河区疾病预防控制中心,510655

出　　处：《健康必读（下）》2011年第7期389-390,共2页

摘　　要：为减少实验误差，调高检测结果精确度，建立了火焰原子吸收光谱法测定矿泉水中铜的不确定度数学模型，通过分析并计算各不确定度分量，得出该法测定矿泉水中铜的扩展不确定度：U95％=0．072，该不确定度评定适用于每个矿泉水样品的检测结果。To reduce experimental error and increase accuracy, a mathematical model of uncertainty for determining copper in mineral water by flame atomic absorption spectroscopy was established. Analyzed and calculated each uncertainty component, the expanded uncertainty of copper in mineral water was determined ： U95% =0. 072, and the method can be used for calculating the uncertainty of samples.

关 键 词：不确定度 铜 火焰原子吸收光谱法 

分 类 号：R15[医药卫生—营养与食品卫生学]