Presentation Profile
Improving the Analytical Sensitivity and Overcoming Chromatographic Coelution in the TO-15 GC-MS Method for Measuring Air Toxics
Currently Scheduled: 1/19/2018 - 9:30 AM - 9:50 AM
Room: Exhibit Hall
Main Author
Ngee Sing Chong - Middle Tennesse State University
- Kiin Keith - Middle Tennessee State University
- Archana Tirumala - Middle Tennessee State University
- Xintian Yu - Middle Tennessee State University
Abstract:
Development of a highly sensitive analytical method for the analysis of gaseous volatile organic compounds (VOCs) is critical to the air quality monitoring program of regulatory agencies, environmental testing laboratories, and atmospheric chemistry research. A gas chromatography-mass spectrometry (GC-MS) based on cryogenic preconcentration of analytes and the use of simultaneous scan and selected ion monitoring (SIM) modes was used to characterize the distribution and concentrations of ambient air toxics in Memphis. Both the Automatic Mass Spectral Deconvolution and Identification System (AMDIS) and TargetView™ programs were compared for their ability to correctly identify co-eluted compounds.
