Abstract
Evaporation rates of chemical components in cigarette main-stream smoke were measured using a denuder system in order to clarify the dividing factor between the vapor and the particle phase. Chemical components passing through a denuder tube were trapped by a tube filled with Tenax TA adsorbent. They were analyzed using thermal desorption system, cooled injection system, gas chromatography and mass spectrometer. It was found that water-soluble components had lower evaporation rates than water-insoluble components, even if they had the same vapor pressure. It was suggested that the water solubility of each chemical component was an important factor for the evaporation property of cigarette main-stream smoke. Furthermore, we measured the filtration efficiency of cigarette filter for some chemical components. It was found that the filtration efficiency of water-soluble components was lower than water-insoluble components when they had the same vapor pressure. It was suggested that the filtration efficiency of each chemical component in cigarette main-stream smoke for cigarette filter was affected by their water solubility, which related to the evaporation property.
