Determination of Organic Acids in Wastewater Using Ion-Exclusion Chromatography and On-Line Carbonate Removal
4 May 2012
This study presents a method for determining eight organic acids in wastewater—acetic, formic, propionic, isobutyric, butyric, isovaleric, valeric, and caproic—using ion-exclusion chromatography and on-line carbonate removal. The interferences are eliminated using ion-exclusion chromatography. Inorganic anions are eluted in the void volume and carbonate is removed by an on-line carbonate removal device.