OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

The Knowledge Bank is scheduled for regular maintenance on Sunday, April 20th, 8:00 am to 12:00 pm EDT. During this time users will not be able to register, login, or submit content.

FURTHER DEVELOPMENTS IN MATRIX ISOLATION SPECTROSCOPY FOR ANALYSIS OF TROPOSPHERIC CHEMISTRY SAMPLES

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/13934

Show full item record

Files Size Format View
1997-RD-05.jpg 113.1Kb JPEG image Thumbnail of FURTHER DEVELOPMENTS IN MATRIX ISOLATION SPECTROSCOPY FOR ANALYSIS OF TROPOSPHERIC CHEMISTRY SAMPLES

Title: FURTHER DEVELOPMENTS IN MATRIX ISOLATION SPECTROSCOPY FOR ANALYSIS OF TROPOSPHERIC CHEMISTRY SAMPLES
Creators: Johnson, T. J.; Khoo, K. Z.; Harris, G. W.
Issue Date: 1997
Abstract: Matrix Isolation Fourier Transform Infrared Spectroscopy (MIFTIR) is a promising technique for collection and analysis of atmospheric trace gases. The technique was originally applied for stratospheric samples, but we have recently begun analysis of tropospheric samples as well, and have obtained good sensitivity for several tropospheric species. In order to achieve this, it was found necessary to remove the large amounts of water from tropospheric air in order to obtain usable spectra: To this end several methods were evaluated including chemical drying (e.g. $P_{2}O_{5}$), commercial air dryers, as well as cryogenic traps. Cryogenic traps proved to be the most effective at removing humidity without affecting the sample. Successful recovery as well as analysis of data from two rural Canadian sites will be discussed. The analysis will focus primarily on the species $N_{2}O$, HCHO, the alcohols, as well as some of the chlorofluorocarbons(CFCs).
URI: http://hdl.handle.net/1811/13934
Other Identifiers: 1997-RD-05
Bookmark and Share