连续流动分析法测定地表水中总磷的不确定度评定

Evaluation of Uncertainty for the Determination of Total Phosphorus on Surface water by Continuous Flow Analysis Method

在实验室分析基础上,对连续流动分析法测定水中总磷过程的不确定度进行评定。本文建立了数学模型,对不确定度来源进行了分析,并计算了不确定度分量、合成不确定度与扩展不确定度,最终给出了总磷测量结果的标准表示方法。

The uncertainty for determination of total phosphorus in water by continuous flow analysis was evaluated on the basis of laboratory analysis. A mathermatical model was established and the uncertainty source was analyzed in this paper. The components of uncertainty,synthetic uncertainty and expanded uncertainty were calculated. Finally a standard expression for determination result of total phosphorus was given.