Rapid solid phase extraction of dissolved organic matter

University of Minnesota M.S. thesis. May 2014. Major: Chemistry. Advisor: Dr. Liz Minor. 1 computer file (PDF); v, 75 pages.Dissolved organic matter (DOM) is a complex mixture of organic molecules found ubiquitously in freshwater and saltwater environments. Contained within the heterogeneous mixture of DOM lies valuable information content on the source of molecules as well as the biotic mechanisms at work within an aquatic ecosystem. Recent advancements in high resolution mass spectrometry and liquid chromatography have made inroads into determinations of the molecular structures within DOM, which have been largely unknown until recently. Liquid chromatography-mass spectrometry (LC-MS) analysis, however, generally requires a prior step to concentrate/isolate DOM, and this step often limits the number of samples that can be analyzed. This study has developed a fast (