光度法测定白云石氧化锰含量的不确定度评定  

Measurement Uncertainty for the Determination of Manganese Oxide in Limestone and Dolomite by Spectrophotometry

作　　者：赵希文[1] 闻向东[1] 周郑[1] 文斌[1] 

机构地区：[1]武汉钢铁集团公司研究院,湖北武汉430080

出　　处：《广州化工》2014年第7期105-107,共3页GuangZhou Chemical Industry

摘　　要：分析了GB/T 3286.5-1998(石灰石、白云石中氧化锰含量的测定)的检测过程,建立了测量过程分量的数学模型。讨论了影响分光光度法测定石灰石、白云石中氧化锰含量过程中的各种不确定度因素,对一个白云石样品中氧化锰含量的不确定度进行了评定,结果表明,工作曲线的变动性及测量重复性所产生的不确定度影响因素最大,其它的不确定度分量较小,甚至可忽略不计。According to the analysis of measurement procedures in GB/T 3286.5 - 1998 （the determination of manganese oxide content of limestone and dolomite）, the mathematical model was established and spectrophotometry for the determination of the manganese oxide content in the limestone and dolomite uncertainty for a variety of factors was assessed. The measurement uncertainty of manganese oxide content in one of the dolomite samples was evaluated. The results showed that the working curve and reproducibility of measurement uncertainty factors were the largest, and uncertainty components of other smaller or negligible.

关 键 词：分光光度法 石灰石 白云石 氧化锰 不确定度评定 

分 类 号：O655.1[理学—分析化学]