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 g1 for carbaryl and 3.0–100.0 ng g1 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 g1. 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.