火焰原子吸收测定土壤中铜的不确定度分析  

Uncertainty Analysis in the Determination of Copper in Soils by Atomic Absorption Spectroscopy

作　　者：王焕姣[1] 褚洪波 文新宇[1] 

机构地区：[1]株洲市环境监测中心站,湖南株洲412000 [2]株洲市环境保护局,湖南株洲412000

出　　处：《四川环境》2007年第2期49-51,70,共4页Sichuan Environment

摘　　要：运用原子吸收测定土壤中的铜含量时,通过对回归方程和换算公式建立的数学模型中C,V,G,facid,ftime,freap六个分量的不确定度分析计算,最后求出铜含量的标准不确定度和扩展不确定度,根据影响标准不确定度的最大影响分量C,找到减小不确定度的方法。To evaluate the uncertainty for determinating copper in soils by flame atomic absorption spectroscopy （ AAS）, the standard uncertainty and extend uncertainty of analytical results for copper can be obtained by calculating 6 factors, C, V, G, facid,ftime,freap, which is based on the mathematical model of regression equation and conversion formula. Based on the maximum component C of affecting the standard uncertainty, the method can be improved to cut down the uncertainty.

关 键 词：不确定度 土壤 铜 火焰原子吸收 

分 类 号：X830.2[环境科学与工程—环境工程]