Evaluation of Uncertainty for Determination of Amitraz Residue in Honey by GC-MS
Objective:To evaluate the uncertainty of determination of diformamidine residue in honey by GC-MS.Method:The residual quantity of diformamidine in honey was determined by gas chromatography-mass spectrometry.The source of uncertainty was analyzed and the component of uncertainty was evaluated by establishing mathematical model.Result:The uncertainty of dimethylcarbamazine residue was mainly introduced by the preparation process of standard solution and the pretreatment process of samples.When the residual amount of diformamidine is 0.122 4 mg·kg-1,the extended uncertainty is 0.008 9 mg·kg-1(k=2).Conclusion:The method is suitable for the uncertainty analysis of diformamidine residue in honey,and provides a scientific and reliable basis for testing data.
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