CORRELATION OF BIOLOGIC PROPERTIES OF STRAINS OF MYCOBACTERIUM WITH INFRA-RED SPECTRUMS .1. REPRODUCIBILITY OF EXTRACTS OF M-TUBERCULOSIS AS DETERMINED BY INFRA-RED SPECTROSCOPY

Abstract
Infrared spectrophotometry gave reproducible spectrums with mixtures obtained by fractional extraction of bacteria by various solvents. There were sufficiently sharp variations in patterns to serve as a means of distinguishing the various extracts.