Using High Resolution MS to Uncover Unknown Chemicals and Disinfection By-Products In Swimming Pools and Hot Tubs
Dr. Susan D. Richardson
Wednesday, June 25, 2014
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Chapters
Introduction
DBPs: How are they formed?
Drinking Water DBPs—What are the Issues?
Pool Facts in the U.S.
Pool DBPs—What are the Issues?
Only 11 DBPs Regulated in U.S. for Drinking Water
Why Unregulated DBPs are Important
Experimental Design
Methods
Water Cycle for Methylated Samples
Corresponding analytical ion chromatograms (AIC)
Initial DBPs Identified
Brand New DBPs! Unknown unknowns
New Bromoimidazole DBPs
New Haloanilines
Cl-H Mass defect plot reveals halogenated DBPs in swimming pool water
Homologous series of Br-Anilines
Drugs can be in hot tubs, too
Chemical Ionization-MS
Next: GCxGC
Mutagenicity of Swimming
Chlorinated vs. Brominated Hot Tub
Summary
Acknowledgments
New Group at University of South Carolina
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