Abstract
In this study, a methodology has been described for the determination of chlorpyrifos pesticide residue in pistachio oil based on a quick, easy, cheap, effective, rugged and safe (QuEChERS) sample preparation with combined ion mobility spectrometry (IMS). The different parameters that could influence the QuEChERS- IMS for chlorpyrifos analysis were optimized. Under optimum conditions, the linear dynamic range was obtained over 0.4 to 20 μg g−1 with R 2 = 0.997 and precision as relative standard deviation was 7.1%. The limits of detection and quantification were 0.1 and 0.3 μg g−1 of chlorpyrifos, respectively. The recovery results of chlorpyrifos were at an acceptable range (average 78.3–92.3).
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