火焰法——原子吸收测定蔬菜中铜的测量不确定度分析  

Analysis of Uncertainty in Measurement for the Method of Flame Atomic Absorption Spectrometry Determination of Copper in Vegetable

作　　者：徐为霞[1] 郭智广 王亮[1] 罗俊霞[1] 

机构地区：[1]郑州市农产品质量检测流通中心,郑州450006

出　　处：《微量元素与健康研究》2008年第1期42-43,共2页Studies of Trace Elements and Health

摘　　要：对火焰法——原子吸收测定蔬菜中铜的分析方法的测量不确定度进行了分析,建立了测量过程中各分量的数学模型,并识别了测量过程中不确定度来源,估算了各不确定度分量对总不确定度的影响,确定了测量结果的置信区间,给出蔬菜中铜的含量及其置信区间为1.05±0.39 mg/kg(k=2)。Analysis of uncertainty in measurement for the method of A A Spectrophotometer determination of copper in vegetable was introduced in this article, mathematical model for evaluation of uncertainty in measurement was constructed based on a comprehensive understanding of the whole procedure of the determination . the sources of uncertainty and their effects on the total uncertainty were also analyzed, the measurement result of copper in vegetable was given as 1.05 ± 0.39 mg/kg.

关 键 词：火焰法——原子吸收 测量不确定度 铜 

分 类 号：O657.31[理学—分析化学]