Uncertainty Evaluation for Determination of Triazophos Residues in Xinhui Citrus Peel by Gas Chromatography Single-column Method
Objective:To evaluate the uncertainty of Gas chromatography in the determination of triazophos pesticide residues in citrus peel of Xinhui District.Methods:The uncertainty components of pesticide residues were analyzed and calculated by establishing a calculation model,and the uncertainty of pesticide residues was obtained.Results:When the residue of triazophos in Xinhui District peel was 1.25 mg/kg,the expanded uncertainty was 0.52 mg/kg(confidence factor k=2).Conclusion:The fitting process of standard series curve is the main factor affecting the uncertainty of this method,and the pretreatment of samples has a greater impact on the uncertainty.Therefore,the determination of triazophos pesticide residues in Xinhui District orange peel should pay attention to these two aspects in order to improve the accuracy.
gas chromatographyXinhui citrus peelpesticide residueuncertainty
万方数据
维普
