Corona Discharge Ion Mobility Spectrometry of Ten Alcohols
- Received Date: 2009-08-05
Abstract: Ion mobility spectra for ten alcohols have been studied in an ion mobility spectrometry apparatus equipped with a corona discharge ionization source. Using protonated water cluster ions as the reactant ions and clean air as the drift gas, the alcohols exhibit different product ion characteristic peaks in their ion mobility spectra. The detection limit for these alcohols is at low concentration pmol/L level according to the concentration calibration by exponential dilution method. Based on the measured ion mobilities, several chemical physics parameters of the ion-molecular interaction at atmosphere were obtained, including the ionic collision cross sections, diffusion coefficients, collision rate constants,and the ionic radii under the hard-sphere model approximation.
|Citation:||Hai-yan Han, Hong-mei Wang, Hai-he Jiang, Michal Stano, Martin Sabo, Stefan Matejcik, Yan-nan Chu. Corona Discharge Ion Mobility Spectrometry of Ten Alcohols[J]. Chinese Journal of Chemical Physics , 2009, 22(6): 605-610. doi: 10.1088/1674-0068/22/06/605-610|