A new specific method for the kinetic analysis of 2,4-dinitrophenylhydrazine in its reaction with aliphatic amines followed by alkali hydroxide in dimethyl sulfoxide is described. This method is superior to other colorimetric methods for polynitroaromatics where unstable colours and a lack of specificity preclude their efficacy.
F. Ahmad, P. M. Qureshi, S. Sinha, S. M. Ali and R. A. K. Rao, Anal. Proc., 1995, 32, 431 DOI: 10.1039/AI9953200431
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