Reference type: Journal
Authors: Mirzajani R, Kardani F, Ramezani Z
Article Title: Fabrication of UMCM-1 based monolithic and hollow fiber - Metal-organic framework deep eutectic solvents/molecularly imprinted polymers and their use in solid phase microextraction of phthalate esters in yogurt, water and edible oil by GC-FID.
Publication date: 2020
Journal: Food Chemistry
Volume: 314
Article Number: 126179.
DOI: 10.1016/j.foodchem.2020.126179
Alternative URL: https://www.sciencedirect.com/science/article/pii/S030881462030025X

Abstract: In this study, for the first time, hollow fiber and monolithic fiber were fabricated based on metal-organic framework deep eutectic solvents/molecularly imprinted polymers (MOF- DES/MIPs) and were used for microextraction of phthalate esters under termed hollow fiber liquid membrane-protected solid-phase microextraction (HFLMP-SPME) followed by gas chromatography- flame ionization detection. Several parameters influencing extraction recoveries of phthalate esters including adsorption and desorption parameters were investigated and optimized using fabricated MOF- DES/MIPs monolithic fiber. Under optimal conditions, detection limits (S/N = 3) of the method were in a range of 0.008-0.03 μg L-1 and limits of quantification (S/N = 10) were between 0.028 and 0.12 μg L-1. RSD (%) for intra-day and inter-day precisions were between 2.4-4.7% and 2.6-3.4%, respectively. Subsequently, this procedure was successfully applied with satisfactory results in the determination of phthalate esters in yogurt, water, and soybean oil samples. The R (%) ranged from 95.5 to 100.0% in different samples
Template and target information: phthalate esters
Author keywords: Phthalate esters (PAEs), Metal-organic framework, Deep eutectic solvents, molecularly imprinted polymer, solid-phase microextraction, Yogurt, water, Edible oil, GC-FID