Abstract
A technique for the analysis of certain amino acids in protein hydrolyzates is proposed which consists in one-dimensional paper chromatography followed by elution of the proper areas and colorimetric analysis by selective methods. Results are reported for the histidine, tyrosine, methionine, and arginine contents of a few crystalline protein. This method has been applied to the differentiation of some known and unknown strains of TMV. Application to DNP-derivatives of chymotrypsin and DFP-inhibited chymotrypsin has not yielded any evidence concerning the mechanism of the inhibition by the alkyl phosphates.
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