Evaluation of Uncertainty for the Determination of Etoxazole in Apple by GC-MS/MS
Gas chromatography-tandem mass spectrometry was used to determine the residual content of etoxazole in apples,and the uncertainty introduced during the measurement process was analyzed and quantified.The results showed that when the content of etoxazole in apples was 0.097 5 mg·kg-1,the expanded uncertainty was 0.007 2 mg·kg-1,k=2.The uncertainty of the determination results of etoxazole mainly comes from the preparation of reagent standard working solution and matrix working solution.It is suggested that relevant personnel should choose appropriate measuring tools to reduce temperature fluctuations in the laboratory environment and improve the accuracy of the measurement results.
gas chromatography-tandem mass spectrometryappleetoxazoleuncertaintyevaluate
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