TETRANACTIN, A NEW MITICIDAL ANTIBIOTIC

V. QUANTITATIVE DETERMINATION OF MAGROTETROLIDEANTIBIOTICS

Abstract

Amethod for quantitative determination of tetranactin and other macrotetrolide antibiotics is presented. The assay is based on the complex formation of the antibiotics with sodium picrate followed by extraction of the complexes into an organic solvent. The macrotetrolide antibiotics can be determined by the present method with accuracy and simplicity in the assay range of l-40 μg/ml.