Abstract:A novel method was developed for the determination of six triazole pesticides in water samples by using ionic liquid-based dispersive liquid-liquid microextraction coupled with high performance liquid chromatography.The influence of extraction parameters including types of extraction solvent,volume of extraction solvent，extraction time,vortexing speed,NaCl concentration,pH value of sample solution were investigated.Using 100 μL 1-butyl-3-methylimidazolium hexafluorophosphate （\[BMIM\]PF6） as extraction drop,5 mL aqueous sample with 4% NaCl(pH 4) was extracted for 3 min with vortexing at 2 500 r/min.Under the optimal conditions,good linear relationships were obtained in the six triazole pesticides concentrations of 0.03-20.00 mg/L with the correlation coefficients of 0.999 6-0.999 9;the detection limits were 0.002-0.006 mg/L(S/N=3).The proposed method was applied to the determination of six triazole pesticides in tap, lake and paddy water with a recovery rate of 69.7%-101.0%,the coefficient of variation is in a range 2.7%-8.6%.