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Sebastian Stengel

Einfluss des Atemanhaltens auf die Konzentration flüchtiger organischer Verbindungen in der menschlichen Ausatemluft

Universität Rostock, 2009

https://doi.org/10.18453/rosdok_id00000640

Abstract: The influence of breath-holding on the concentration of volatile organic compounds in the exhaled breath was investigated. Alveolar sampling was done by capnometry, and the analysis was performed using SPME, GC, and MS. The isoprene concentrations increased, as expected, while the Acetone concentrations decreased with time of breath-holding, which is possibly due to condensation in lower bronchial walls. It was found that a normalization of the measured concentrations is necessary to minimize the influence of inspired concentrations and to account for the wide range of individual variations.

doctoral thesis   free access    


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