An analytical procedure for the sampling and quantitative determination of biogenic hydrocarbons in the atmosphere is presented. The method is based on the adsorptive preconcentration of the hydrocarbons using Tenax TA/Carbopack B filled sampling tubes followed by thermodesorption of the trapped compounds and gas chromatographic analysis. To avoid losses of the biogenic alkenes as a consequence of their reaction with ozone on the adsorbents during the sampling step, an ozone scrubber is used in front of the adsorption tubes. Diurnal variations of the monoterpene- and ozone-concentrations are determined at different heights in and above a forest stand (coniferous and deciduous trees) in the Vosges (Col du Donon, 760m a.s.l.) in order to elucidate the importance of terpene-oxidation reactions on the formation of peroxidic products in forest air. © 1993, Taylor & Francis Group, LLC. All rights reserved.
CITATION STYLE
Hoffmann, T., Jacob, P., Linscheid, M., & Klockow, D. (1993). Measurements of biogenic hydrocarbons and their atmospheric degradation in forests. International Journal of Environmental Analytical Chemistry, 52(1–4), 29–37. https://doi.org/10.1080/03067319308042845
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