CAPILLARY ELECTROPHORESIS FOR A FINGER-PRINT CHARACTERIZATION OF FULVIC AND HUMIC ACIDS

Capillary zone electrophoresis is suitable for characterizing fulvic a nd humic acids of different origins and for developing a ''finger-prin t'' catalogue that is based of the functionality of these acids. Sever al fulvic and humic acids of different origins were investigated by ca pillary zone electrophoresis. The goal of this investigation was to as sign their different functional properties to their origin based on th eir individual charge-to-size ratios. The electropherograms of the hum ic and fulvic acids show individual patterns. The substances show diff erences in their migration behavior and in their UV absorption. These characteristics are due to different charge-to-size ratios and various structural properties of the individual components of humic and fulvi c acids caused by their different origin.