Ultrasound-assisted dispersive liquid-liquid microextraction followed by ion mobility spectrometry for the simultaneous determination of bendiocarb and azinphos-ethyl in water, soil, food and beverage samples

• Published in: Ecotoxicology and environmental safety Vol. 165; pp. 459 - 466
• Main Authors: Ghoraba, Zahra, Aibaghi, Behzad, Soleymanpour, Ahmad
• Format: Journal Article
• Language: English
• Published: Netherlands 15.12.2018
• Subjects: Azinphosmethyl - analogs & derivatives; Azinphosmethyl - analysis; Beverages - analysis; Environmental Monitoring - methods; Environmental Pollutants - analysis; Food - standards; Food Analysis - methods; Ion Mobility Spectrometry; Limit of Detection; Liquid Phase Microextraction - methods; Phenylcarbamates - analysis; Soil - chemistry; Solvents - chemistry; Ultrasonics; Water - analysis; Azinphos-ethyl; Bendiocarb; Ultrasound-assisted dispersive liquid-liquid microextraction (UA-DLLME); Ion mobility spectrometry (IMS)
• ISSN: 0147-6513; 1090-2414
• DOI: 10.1016/j.ecoenv.2018.09.021

A sensitive and fast ultrasound-assisted dispersive liquid-liquid microextraction procedure combined with ion mobility spectrometry has been developed for the simultaneous extraction and determination of bendiocarb and azinphos-ethyl. Experimental parameters affecting the analytical performance of the method were optimized: type and volume of extraction solvent (chloroform, 150 µL), pH (9.0), type and volume of buffer (ammonium buffer pH = 9.0, 4.5 mL) and extraction time (3.0 min). Under optimum conditions, the linearity was found to be in the range of 2-40 and 6-100 ng/mL and the limits of detection (LOD) were 1.04 and 1.31 ng/mL for bendiocarb and azinphos-ethyl, respectively. The method was successfully validated for the analysis of bendiocarb and azinphos-ethyl in different samples such as waters, soil, food and beverage samples.