Summary
A Tunable Diode Laser Spectrometer (TDLS) has been developed and used to measure hydroperoxy compounds in atmospheric mixing ratios and to study their chemical behaviour under atmospheric conditions. The TDLS was coupled to a White cell which allows in combination with a 2f technique, the measurement of H202 mixing ratios below 0.2 ppb. The 2f signal was calibrated against H2O2 concentrations via UV absorption and checked by comparison with a peroxyoxalate chemiluminescence method. The reactions of some biogenic alkenes with ozone were studied under atmospheric conditions to determine the yield of H2O2 formed in these systems.
The absorption cross-sections of methylhydroperoxide near 1320 cm-1 were also measured in order to assess the possibility of its determination in the atmosphere.
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© 1990 ECSC, EEC, EAEC, Brussels and Luxembourg
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Bechara, J., Becker, K.H., Brockmann, K.J. (1990). Studies on the spectroscopy and chemistry of some atmospheric hydroperoxides with a tunable diode laser. In: Restelli, G., Angeletti, G. (eds) Physico-Chemical Behaviour of Atmospheric Pollutants. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0567-2_4
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DOI: https://doi.org/10.1007/978-94-009-0567-2_4
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