The Journal of Infectious Diseases, Vol. 37, No. 6 (Dec., 1925), pp. 523-527 (5 pages) A soluble specific substance has been extracted from hemolytic streptococci. The chemical reactions of this ...

Chromatography is used to separate the given components of a mixture that have differing solubilities in a solvent. It can be used to separate coloured substances in a mixture, like the inks in this ...