316 Detection of Chlorinated and Fluorinated Compounds Using Ion Mobility Spectrometry and Mass Spectrometry a Scientific Collaboration Across the Atlantic Ocean

Thursday, November 5, 2009: 1:10 PM
Angus (Camino Real Hotel)
Hartwig Schmidt , Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, NM
Ion mobility spectrometry (IMS) is an analytical technique characterized by its low detection limits (low ng/L range without preconcentration), short time of analysis (ms-range) and selective detectability of substances of different chemical classes at ambient pressure.  For the detection of volatile chlorinated and fluorinated compounds, custom built mobility spectrometers (ISAS-Dortmund, Germany) were equipped with radioactive ionization sources (63Ni-IMS) and partial discharge sources (PD-IMS), and their analytical figures of merit were determined.  By coupling the PD ion source to an atmospheric pressure quadrupole mass spectrometer (Eiceman Research Team, NMSU, Las Cruces, NM), an insight into the reactions taking place in PD-IMS analyzers was gained and the reactant and analyte ions of chlorinated and fluorinated carbons were characterized.