Determination of Carbamate and Benzoylurea Insecticides in Peach Juice Drink by Floated Organic Drop Microextraction–High Performance Liquid Chromatography

Abstract

Abstract Floated organic drop microextraction (FDME)–high performance liquid chromatography (HPLC) has been developed for extraction and determination of carbamate and benzoylurea insecticide residues from peach juice drink samples. The components were separated by a Diamonsil C18 instrument (5 µm, 250 mm × 4.6 mm i.d.). The mobile phase was a mixture of acetonitrile, methanol, and water (the ratio of volume was 18:70:12). Factors relevant to the extraction efficiency were studied and optimized. The methodology exhibited good linearity between 0.01 and 10.0 µg/mL with a correlation coefficiency of 0.9999. The average recovery of pesticides ranged from 88.49% to 101.86%. The relative standard deviations (RSDs) (n = 6) were 1.99–3.47%.