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Article
Analysis of Antibiotics in Milk using Open Tubular Capillary Electrochromatography
Journal of Liquid Chromatography and Related Technologies (2005)
  • J. J. Pesek, San Jose State University
  • Maria T. Matyska-Pesek, San Jose State University
  • T. Bloomquist, San Jose State University
  • G. Carlon, San Jose State University
Abstract

The analysis of five antibiotics (ampicillin, tetracycline, oxytetracycline, chlorotetracyline, and erythromycin) in milk by open tubular capillary electrochromatography is evaluated. The separation medium is an etched capillary chemically modified with the liquid crystal 4‐cyano‐4′‐n‐pentoxy‐1‐1′‐biphenyl. A simple sample preparation method is used to produce a milk serum with a relatively small number of components and then the antibiotics are analyzed electrophoretically in this matrix. The effects of pH and addition of organic modifier to the mobile phase are also evaluated.

Disciplines
Publication Date
2005
Publisher Statement
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Citation Information
J. J. Pesek, Maria T. Matyska-Pesek, T. Bloomquist and G. Carlon. "Analysis of Antibiotics in Milk using Open Tubular Capillary Electrochromatography" Journal of Liquid Chromatography and Related Technologies Vol. 28 Iss. 19 (2005)
Available at: http://works.bepress.com/maria_matyska-pesek/43/