火焰原子吸收法测定预调酒中铅含量不确定度的评定

摘要

The flame atomic absorption method for the determination of pre cocktail of lead content in measurement uncertainty evaluation. According to GB 5009.12-2010 the lead in the national food safety standards of Food Determination of the detection principle and method, combined with JJF1059-1999 the measurement uncertainty of evaluation and expression of and CNAS-GL06 the chemical analysis does not determine degree assessment guide provides the basic procedures, inspects the source of measurement uncertainty of pre cocktail of lead content in, by multiple measurements obtained from the experimental data, analysis and evaluation of combined uncertainty of measurement results.%对火焰原子吸收法测定预调酒中铅含量的测量不确定度进行评定.根据GB 5009.12-2010《食品安全国家标准 食品中铅的测定》的检测原理和方法,结合JJF1059-1999《测量不确定度评定与表示》和CNAS-GL06《化学分析中不确定度的评估指南》规定的基本程序,对预调酒中铅含量的测量不确定性的来源进行了考察,利用多次测量获得的实验数据,分析计算并评定测量结果的合成不确定度[1-2].