A Microbiological Assay for Isonicotinyl Hydrazine

Abstract
Isonicotinyl hydrazine is detd. microbiologically by a diffusion-plate technic employing a strain of Mycobacterium butyricum. The method is suitable for use with aqueous solns. and biological fluids containing 5 ug./ml. or more of the drug. Hydrazine, isonicotinic acid and isonicotinamide do not interfere.

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