HR: 1340h
AN: A33B-1184    [Abstracts]
TI: The application of ion drift - chemical ionization tandem mass spectrometry (ID-CIMS/MS) for fast detection and quantification of organic and inorganic compounds
AU: * Zheng, J
EM: junzheng@ariel.met.tamu.edu
AF: Department of Atmospheric Sciences, Texas A&M University, 3150 TAMU, College Station, TX 77843-3150, United States
AU: Zhang, R
EM: zhang@ariel.met.tamu.edu
AF: Department of Atmospheric Sciences, Texas A&M University, 3150 TAMU, College Station, TX 77843-3150, United States
AB: Chemical ionization mass spectrometry (CIMS) has been widely employed in atmospheric chemistry research, including laboratory kinetic investigations and field trace gas measurements. In the CIMS method, a neutral species is ionized by a reagent ion to yield a product ion, which is analyzed by a quadrupole mass analyzer for species identification and abundance determination. One type of CIMS applications involves proton-transfer reaction mass spectrometry (PTR-MS), which has been developed for on-line quantification of volatile organic compounds (VOCs) in air. The CIMS method has also been widely used in atmospheric monitoring of inorganic species. In this talk, we describe the application of ion drift ?chemical ionization tandem mass spectrometry (ID- CIMS/MS) for fast detection and quantification of organic and inorganic compounds. Demonstrations of the ability of ID-CIMS/MS to differentiate and quantify VOCs and inorganic compounds in a laboratory setting are presented. We will illustrate that the ID-CIMS/MS technique facilitates detection and quantification of organic and inorganic species in laboratory kinetic investigations and field measurements.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0320 Cloud physics and chemistry
DE: 0345 Pollution: urban and regional (0305, 0478, 4251)
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting