TITRIMETRIC DETERMINATION OF TOTAL ALDEHYDES IN CINNAMON BARK AND LEAF OILS USING CHLORAMINE‐T REAGENT

Abstract

A titrimetric method for determining cinnamaldehyde has been developed; it is based on the quantitative reaction of the aldehyde with semicarbazide hydrochloride to form the semicarbazone. The semicarbazone is removed and the excess unreacted semicarbazide determined iodometrically using chloramine‐T reagent. Two moles of chloramine‐T are required per mole of the semicarbazide. The method has been used in the routine quality evaluation of cinnamon oils and the samples required are about 0.02 g for bark oils and 0.05 g for leaf oils. Copyright © 1981, Wiley Blackwell. All rights reserved