期刊
FOOD CONTROL
卷 34, 期 2, 页码 378-385出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2013.05.013
关键词
Ultrasonic extraction; Dispersive liquid-liquid microextraction; Organophosphorous pesticides; Summer crops
资金
- Kermanshah University of Medical Sciences (Kermanshah, Iran)
The ultrasound-assisted solvent extraction (UASE) followed by dispersive liquid-liquid microextraction based on the solidification of floating organic drop (DLLME-SFO) has been developed for extraction and determination of organophosphorous pesticides from summer crops. Organophosphorous pesticides were determined by high performance liquid-liquid chromatography-ultraviolet detector (HPLC-UV). Some effective parameters on extraction were studied and optimized. Under the optimum conditions, recoveries for different fruits are in the range of 44.0-61.0%. The calibration graphs are linear in the range of 5-800 mu g kg(-1) and limit of detections (LODs) are in the range of 1-4 mu g kg(-1). The relative standard deviations (RSDs) for 100 mu g kg(-1) of OPPs in different fruits are in the range of 5.5-9.1 (n = 5). The obtained results show that UASE-DLLME-SFO combined with HPLC-UV is a fast and simple method for the determination of pesticides in summer crops. (C) 2013 Elsevier Ltd. All rights reserved.
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