Published In

Journal of Applied Physics

Document Type

Article

Publication Date

7-1-1980

Subjects

Air -- Analysis, Hydroxyl group -- Detection, Fluorescence

Abstract

In the measurement of HO concentrations by laser-excited fluorescence, expansion of the sampled air offers a way to reduce fluorescent and photolytic interference by other species. The decrease in [HO] upon expansion is balanced by an increase in HO fluorescence yield over a wide range of pressures. Background air fluorescence is reduced if the responsible species have fluorescence yields higher than those of HO. Preliminary experiments indicate that most of the fluorescence observed in laboratory air is due to such species. Upon expansion, the suppression of fluorescent interference can be no greater than the reduction in pressure, whereas the suppression of photolytic interference can be no less.

Description

Article appears in Journal of Applied Physics (http://jap.aip.org/) and is copyrighted (1980) by the American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.

DOI

10.1063/1.328199

Persistent Identifier

http://archives.pdx.edu/ds/psu/7635

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