Measurements of free radicals in the atmosphere by matrix isolation and electron paramagnetic resonance
Mihelcic, D. ; Ehhalt, D. H. ; Kulessa, G. F. ; Klomfass, J. ; Trainer, M. ; Schmidt, U. ; Röhrs, H.
Springer
Published 1978
Springer
Published 1978
| ISSN: |
1420-9136
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|---|---|
| Keywords: |
Electron paramagnetic resonance ; Free radicals ; Matrix isolation
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Geosciences
Physics
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| Notes: |
Abstract With some special adaptations the technique of matrix isolation followed by detection through electron paramagnetic resonance (EPR) can also be used for the measurement of atmospheric radical concentrations. A light weight cryogenic sampling device has been constructed. It uses condensation of atmospheric CO2 or H2O at 77 K for matrix formation and trapping of the radicals. The sampler has been flown on a balloon for stratospheric sampling. First data on stratospheric, HO2 and NO2 at 32 km altitude have been obtained on a flight on 8 August 1976 and will be reported.
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| Type of Medium: |
Electronic Resource
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| URL: |