Figure 4.

Plots of the partition coefficients, K, for odorants sorbing into the stationary phases with squalane at 100°C (a) and tricresyl phosphate at 120°C (b), obtained from gas chromatography data (19), vs. odorant vapor pressure. The odorants plotted in both plots are methanol, ethanol, acetone, dichloromethane, 1-propanol, ethyl acetate, 2,3-dimethylbutane, n-hexane, chloroform, 1-butanol, 2-chloroethanol, tetrachloromethane, benzene, 1-pentanol, cyclopentanone, toluene, n-octane, 1-hexanol, 1-heptanol, 2-octanol, n-decane, n-butane, 1-octanol, and n-dodecane. Additional odorants plotted only in a are ethane, m-diethylbenzene, o-diethylbenzene, and o-xylene. Additional odorants plotted only in b are ethylene glycol diacetate, n-hexadecane, n-tetradecane, and n-octadecane. The solid lines represent the best line fits through the data points, with the fitting parameters given in the figures.