原子荧光法测定调味品中锗的不确定度来源分析

Sources of Uncertainty of Germanium in Condiment by Atomic Fluorescence Spectrometry

目的:建立调味品中锗的测定的不确定度评定方法。通过对调味品中锗的测定找出其中不确定度的主要来源。结果:不确定度的主要来源:(1)试样的称重;(2)消化定容;(3)原子荧光测定。结论:通过该不确定度评定方法找出实验测定过程中的关键环节,对关键环节加以注意,提高实验结果的准确性和精密度。

Establish the uncertainty evaluation methods of germanium in condiment.Find out the main sources of uncertainty by determination of germanium in condiment.Results：The main sources of uncertainty：（1 ）weighing samples;（2 ）digestion and constant volume;（3 ）Atomic Fluo-rescence for determination.Conclusion：Find out the key links in the experimental determination process by uncertainty evaluation methods and pay attention to the key links to improve the accuracy and precision of experimental results.