摘 要：依据相关技术规程，建立氢化物原子荧光法测定生活饮用水中砷含量的不确定度评定方法。从标准溶液、标准溶液配制、测量重复性、标准曲线拟合等方面分析和计算不确定度分量，对各分量进行合成和扩展，得出测量不确定度评定结果。结果表明，生活饮用水中砷含量测定结果为(2.432±0.210)μg·L-1

    (k=2)；影响测量结果的主要因素是标准曲线拟合。

    关键词：生活饮用水；原子荧光法；不确定度；曲线拟合；砷含量

    Evaluation of Uncertainty for the Determination of Arsenic in Drinking Water by Hydride Atomic Fluorescence Spectrometry

    WEI Qiang

    (Fujian Tuopu Detection Technology Co.， Ltd.， Fuzhou 350108， China)

    Abstract： According to relevant technical regulations， the uncertainty evaluation method for the determination of arsenic content in drinking water by hydride atomic fluorescence method is established. The uncertainty components is analyzed and calculated from the aspects of standard solution， standard solution preparation ......