Methods for the determination of carbonyl compounds based on their ability to dimi­nish the hydroxylamine anodic wave are described. The necessity of adding a proton acceptor in the determination of ketones is illustrated. The rapid direct current (d.c.) and the alternating current (a. c.) polarographic techniques were applied for the determination of 2-8 x 104M and 1-6 x 1O-5M car­bonyl compounds, respectively, with a reproducibility of ± 1.4%. These methods are shown to be suit­able for total carbonyl group determination.


I Z AL ZAMIL ,M A AL HAJJAJI ,