Determination of benzoylurea insecticides in juice and water samples by high performance liquid chromatography after dispersive solid phase extraction with MOF based sorbent

Abstract

Abstract In this study, an effective graphene oxide-metal organic framework (GO-MOF(801)) sorbent was employed for the detection of benzoylurea insecticides (BUs) in aqueous solution using high performance liquid chromatography (HPLC). The optimal extraction parameters for the suggested dispersive solid phase extraction (DSPE) include sorbent dose = 20 mg, elution solvent = dichloromethane, solution pH = below 7.0 and sonication time = 3 min. The linear dynamic ranges and detection limits for BUs samples under above extraction conditions were ranged from 0.5–250 µg L− 1 and 0.1–1.11 µg L− 1, respectively. Moreover, the proposed DSPE/HPLC assay was employed for the monitoring of insecticides in river water and grape juice samples. The obtained recoveries of the targets were between 94.0 and 106.0% and relative standard deviation (RSD) values were less than 7.5%. The application of the GO-MOF(801) as a sorbent in DSPE of insecticides analytes showed to be reliable and sensible methodology for BUs monitoring in different real samples.