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  • Title: Determination of oxytetracycline in milk samples by polymer inclusion membrane separation coupled to high performance liquid chromatography.
    Author: Pérez-Silva I, Rodríguez JA, Ramírez-Silva MT, Páez-Hernández ME.
    Journal: Anal Chim Acta; 2012 Mar 09; 718():42-6. PubMed ID: 22305896.
    Abstract:
    The determination of oxytetracycline in milk samples using a polymer inclusion membrane concept with high performance liquid chromatography (HPLC) was studied. The membranes developed are composed by cellulose acetate as polymer base, Cyanex 923 as carrier and o-nitrophenyl octyl ether as plasticizer. In the optimal conditions, the method exhibits good linearity in the range 0.03-0.20 mg L(-1) with a limit of detection and quantification of 8.2 and 27.3 μg L(-1) respectively. The method was successfully applied to the analysis of milk samples with high selectivity.
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