Record Display for the EPA National Library Catalog

RECORD NUMBER: 30 OF 40

OLS Field Name OLS Field Data
Main Title Molecular Modulation Spectrometry for Observation of Free Radicals.
Author Johnsto, Harold S. ;
CORP Author California Univ., Berkeley. Dept. of Chemistry.
Year Published 1974
Report Number EPA-R-801120; 650/4-74-004;
Stock Number PB-231 174
Additional Subjects Free radicals ; Spectroscopic analysis ; Phase shift ; Photochemical reactions ; Ultraviolet spectra ; Infrared spectra ; Nitrogen pentoxide ; Mass spectra ; Chlorine oxides ; Reaction kinetics ; Amplitude modulation ; Hydroperoxo radical ; Chemical reaction mechanisms
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-231 174 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 104p
Abstract
The report contains a description of the methodology that has been developed for measuring free radicals intermediates. The molecular modulation method developed was designed to detect and follow free radicals in photochemical reactions that are known to occur at light intensities equal to that of sunlight. Reaction intermediates that were studied were ClOO, ClO, HOO, and N2O5. The method developed can measure radicals at concentrations as low as 10 to the 11th power particles/cc.