Journal
FOOD CHEMISTRY
Volume 157, Issue -, Pages 119-124Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2014.02.007
Keywords
Hollow fibre liquid phase microextraction; Graphene; Carbamate pesticides; High performance liquid chromatography
Funding
- National Natural Science Foundation of China [31171698]
- Science and Technology Supporting Program of Hebei Province [12396908D]
- Natural Science Foundation of Hebei Province [B2012204028]
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Graphene reinforced hollow fibre liquid phase microextraction combined with high performance liquid chromatography-diode array detection was developed for the determination of some carbamate pesticides (metolcarb, carbaryl, isoprocarb, and diethofencarb) in fruit samples. The main parameters that affect the extraction efficiency for the carbamates were investigated. Under the optimum conditions, a good linearity was observed in the range of 1.0-100.0 ng g(-1) for carbaryl and 3.0-100.0 ng g(-1) for the other three analytes, with the correlation coefficients (r) of 0.9965-0.9993. The limits of detection of the method ranged from 0.2 to 1.0 ng g(-1). The relative standard deviations were in the range from 6.2% to 7.8%. The results indicated that the developed method is sensitive and efficient for the determination of the carbamate pesticides in fruit samples. (C) 2014 Elsevier Ltd. All rights reserved.
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