Determination of bendiocarb in vegetables by matrix solid-phase disperse and gas chromatography

A method based on matrix solid-phase dispersion(MSPD) extraction with florisil-graphitized carbon black was developed to determine bendiocarb in different vegetables(spinach, tomato, cucumber, garlic,carrot). The bendiocarb was analyzed by gas chromatography with nitrogen-phosphorus detector. Optimization of different parameters(the type of solid supports for matrix dispersion, the ratio of sample to sorbent, different eluent and dosage) was carried out. The results show that the recovery rate range is 80.9%～107.2% with relative standard deviation lower than 8%. It is proved that MSPD is a valid method to analyze bendiocarb in most vegetables.