Article ID Journal Published Year Pages File Type
7587745 Food Chemistry 2016 35 Pages PDF
Abstract
An ethylenediamine functionalized glycidyl methacrylate (GMA) based terpolymeric chelating resin was synthesized for the separation and preconcentration of Cd(II) and Zn(II) by SPE from bread, rice and fruit juice prior to FAAS determination. The resin was characterized by FT-IR, TGA/DTA, SEM, BET analysis and EDS. Synthesized resin shows a good capacity of 53.96 mg g−1 for Cd(II) and 24.19 mg g−1 for Zn(II) at pH 8.0. Five isotherm equilibrium models were studied to explain the sorption phenomenon out of which Langmuir, Dubinin-Radushkevich, Scatchard and Temkin models were found to be the best fitted. The limit of detection (LOD) and limit of quantification (LOQ) were observed to be 1.5 and 5.1 μg L−1 for Cd and 1.2 and 4.1 μg L−1 for Zn. The reliability of the method was investigated by the analysis of SRM and the recovery of analytes from various spiked food samples.
Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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