Determination of Chlorantraniliprole in Vegetables, Fruits and Grains by SPE Clean-Up and
$$lc-UV
A method for the determination of chlorantraniliprole in six foodstuffs (including vegetables, fruits and grains) has been developed. The analyte was extracted with acetonitrile from foodstuffs and for the clean-up of raw extracts a florisil cartridge was used. Determination and quantification of chlorantraniliprole were performed by
$$lc with an UV detector. The calibration graphs of chlorantraniliprole in solvent or six blank matrixes were linear within the tested interval 0.01–2 mg L
−1, with correlation coefficients of determination over 0.9990. With the exception of some cruciferous vegetables, average recoveries of chlorantraniliprole in tested foodstuffs were between 94.6 and 101.1% at spiking levels of 0.01, 0.05 and 0.1 mg kg
−1, with relative standard deviations ranging from 0.9 to 9.2%. The limit of detection (LOD) of the
$$lc-UV system was 200 pg. The limit of quantification of the entire method was <0.01 mg kg
−1.