AWWA WQTC69384 PDF

This study examined the effects of changing pH and copper concentrations on the absorbance spectra of a standard fulvic acid. Differential absorbance spectra calculated for a Suwannee River fulvic acid sample revealed features which were absent in the raw absorbance spectra. These features could be attributed to the activities of distinct types of chromophores in both proton and copper binding. A correlation between the spectra of chromophores active in copper binding and those active in proton binding for the same pH regions further highlighted the ability of differential absorbance spectroscopy to effectively characterize the binding properties of this fulvic acid at the low copper and dissolved organic carbon concentrations relevant in many environmental systems. Includes 7 references, figures.

Edition :	Vol. - No.
File Size :	1 file , 790 KB
Note :	This product is unavailable in Ukraine, Russia, Belarus
Number of Pages :	7
Published :	11/01/2008