Study on Chlorantraniliprole and Methoxyfenozide Residue in Vegetables and Soil by HPLC

A high performance liquid chromatography (HPLC) method was developed for the determination of chlorantraniliprole and methoxyfenozide in vegetables (cucumber,greengrocery,cowpea,cabbage and tomato) and soil. The residues of vegetable and soil samples were extracted with acetonitrile,and vegetable samples were cleaned up with NH2 Solid-phase extraction,and condensed to dry. Determinations of analytes were completed using HPLC with DAD detection at 230 nm. Under HPLC conditions,The fortified recoveries of phenazine-1-carboxylic acid in straw,chaff and unpolished grain were in range of 87.6%-114.4%,with relative standard deviations less than 10%. and the minimum determination concentration was 0.05 mg/kg in these samples,the detectable limit of chlorantraniliprole and methoxyfenozide was estimated to be 1 ng.