Acrolein Determination by Means of Tryptophane A Colorimetric Micromethod

Abstract

A new colorimetric method of analysis for acrolein has the advantages over previous methods of a spectrally purer color with • maximum in the absorption curve, a colorless blank, and greater specificity. The method is based on the color produced by the condensation of acrolein with tryptophane induced by concentrated hydrochloric acid, and is capable of detecting quantitatively as little as 15 micrograms of acrolein. The method is suitable for quantitative work only in the absence of other aldehydes, unless their concentration is relatively much less than that of the acrolein. © 1945, American Chemical Society. All rights reserved.