Altering of Cigarette Smoke Condensate: Quantitative Determination of the Formation of Artifacts Produced by Gas-Phase and Particulate Phase Reactions/Alterung von Cigarettenrauchkondensat: Quantitative Untersuchungen der Artefaktbildung durch Gas- und Partikelphasenreaktionen

A formation of artifacts, produced by secondary reactions of compounds of cigarette smoke condensate, was determined quantitatively on reactions of the so-called gaseous phase and particulate phase. It was demonstrated that there was a continuously increasing yield of the dry total particulate matter in acetonic solutions of the condensate from cooled traps, depending on storage time and increasing temperature. There were linear correlations between the dry total particulate matter and storage time or storage temperature when one of these parameters was kept constant. Responsible for the increasing yield of the dry total particulate matter may be reactions among the constituents of the gaseous phase (about 7.5 %) and reactions between constituents of the gaseous phase and the particulate phase (more than 90 %). In another examination reactions of the particulate phase were analysed by quantitative determinations of pigments of a condensate fraction. These substances were fractionated and the distribution of their molecular weight was determined by a gelchromatographic method. The increasing yield and the tendency to form particles of higher molecular weight are depending on the storage temperature and storage time.