Preparation, evaluation and application of core–shell molecularly imprinted particles as the sorbent in solid-phase extraction and analysis of lincomycin residue in pasteurized milk

Add time:08/21/2019    Source:sciencedirect.com

In this study, core–shell lincomycin-imprinted polymers were successfully synthesized and their binding properties evaluated. The functional monomers of methacrylamide and acrylamide were used for synthesis of core and shell, respectively. The optimum synthesized core–shell molecularly imprinted polymer (MIP) was applied as a sorbet in solid phase extraction cartridge. Afterwards, the method of core–shell molecularly imprinted solid phase extraction (CSMISPE) was used for pre-concentration and clean-up of lincomycin in the milk matrix prior to analysis via high performance liquid chromatography equipped with UV detector (HPLC-UV). The linear range for analysis of lincomycin in the milk matrix using introduced method was obtained from 0.08 to 2 μg/mL with recovery range of 80%–89%. The limit of detection and limit of quantification were 0.02 μg/mL and 0.08 μg/mL, respectively. Finally, calibrated CSMISPE-HPLC-UV method was used for lincomycin residue checking and quantification in the pasteurized milk samples of Mashhad city market.

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