气相色谱（GC）测定蔬菜中拟除虫菊酯类农药残留量

对气相色谱（GC）测定蔬菜中拟除虫菊酯类农药残留量的不确定度进行分析评估。通过建立的数学模型和推导出不确定度的计算公式，分析了测量过程的不确定度来源，并对不确定度的各个分量进行计算，最后评估了标准合成不确定度和扩展不确定度。

Evaluation of the uncertainty of measurement for determination residue of pyrethroids pesticide in vegetables by GC

The uncertainty of measurement for determination residue of pyrethroids in vegetable and fruit by GC method was evaluated. Many Possible sources of uncertainty of measurement in this measurement were analyzed by developing mathematic model and concluding mathematic expression of uncertainty in this measurement. With the use of standard samples, each standard uncertainty was calculated, thus the combined standard uncertainty and expanded uncertainty were determined.