Abstract:A comprehensive analytical method based on high performance liquid chromatography (HPLC) was developed for measurement in foods of 6 phthalates-Dibutyl phthalate, Dioctyl Phthalate, Di-N-pentyl phthalate, Diethyl phthalate, Butyl benzyl phthalate, Diallyl phthalate. The extracts were analyzed by HPLC using an Inertsil C18 column. The two kind of organic mobile phases which are acetonitril and the methanol were compared. The acetonitril-water gradient elusion was found to be more advantageous. Under the optimal conditions, the calibration curves showed a good linearity (R2>0.999 0) in the concentration ranged from 1.0~20.0 mg/L for 4 target compounds. Recoveries of 6 analyses at three spiked levels ranged from 85.57% to 109.90%, with relative standard deviations (RSD) less than 10%. The detection limits of the method ranged from 0.179 to 0.425 mg/L. This method is sensitive and simple, and is suitable for the rapid determination of the phthalates added in the food.