Fluorimetric assay of tetracycline mixtures

Hall, D.

Journal of Pharmacy and Pharmacology 28(5): 420-423

1976


ISSN/ISBN: 0022-3573
PMID: 6750
Document Number: 101758
A simple and precise fluorimetric method is described for the simultaneous assay in plasma of a mixture containing chlortetracycline, demethylchlortetracycline and tetracycline. Assay within the therapeutic ranges of 0-5 mg l-1 is achieved by formation of strongly fluorescent Al/tetracycline complexes, without prior extraction or separation of the individual antibiotics. This is performed by determinations at the peak excitation and fluorescence emission wavelengths of each tetracycline chelate. The method can be similarly applied to the assay of oxytetracycline, rolitetracycline and minocycline.

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