HPLC determination of tetracycline antibiotics in milk with post-column derivatization and fluorescence detection


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The conditions for sensitive and selective determination of tetracyclines in milk in the form of their complexes with Mg2+ via the HPLC method with post-column derivatization and fluorescence detection are found. It is shown that the fluorescence of tetracycline-Mg2+ complexes in microemulsions is 1.8 times more intense than that in aqueous acetonitrile medium. The detection limits of tetracycline, oxytetracycline, and doxycycline are 5, 8 and 25 ng mL–1, respectively.

Sobre autores

I. Kargin

Moscow State University

Autor responsável pela correspondência
Email: karginid@gmail.com
Rússia, Moscow

L. Sokolova

Moscow State University

Email: karginid@gmail.com
Rússia, Moscow

A. Pirogov

Moscow State University

Email: karginid@gmail.com
Rússia, Moscow

O. Shpigun

Moscow State University

Email: karginid@gmail.com
Rússia, Moscow

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