作者
Marcela Marília de Lima, André Coutinho Vieira, Isarita Martins, Vanessa Bergamin Boralli, Keyller Bastos Borges, Eduardo Costa Figueiredo
发表日期
2016/4/15
期刊
Food chemistry
卷号
197
页码范围
7-13
出版商
Elsevier
简介
A new restricted access molecularly imprinted polymer coated with bovine serum albumin (RAMIP-BSA) was synthesized, characterized and used for direct analysis of ivermectin from bovine meat samples, in a two-dimensional liquid chromatography system with UV detection. Ivermectin, 4-vynilpiridine and ethylene glycol dimethacrylate were employed as template, functional monomer and cross-linker, respectively. A BSA layer was cross-linked around the polymer, resulting in a biocompatible chemical barrier able to eliminate about 100% of protein from the samples. Ivermectin was extracted from the minced meat samples through a solvent extraction using methanol:water (70:30, v:v), and the extracts were directly injected into the two-dimensional liquid chromatography system, without any other treatment. Samples, fortified with ivermectin from 50 to 500 μg kg−1, were used to build the analytical calibration curve …
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