Estimating the relationship between liquid- and vapor-phase odorant concentrations using a photoionization detector (PID)-based approach.

ABSTRACT: Olfactory studies frequently utilize odor stimuli consisting of volatiles created from liquid dilutions of various chemicals. A problem arises if the researcher relies on these liquid dilutions to extrapolate vapor concentrations based on ideal gas behavior. For most chemicals, the relationship between liquid and vapor concentration deviates from these laws of proportionality due to interactions between the chemical and the solvent. Here, we describe a method to estimate vapor-phase concentrations of diluted odorants using a photoionization detector. To demonstrate the utility of this method, we assessed the relationship between liquid-/vapor-phase concentrations for 14 odorants (7 alcohols, 1 ester, and 6 aldehydes) in 5 different solvents (water, mineral oil, diethyl phthalate, dipropyle

SUBMITTER: Jennings L 

PROVIDER: S-EPMC10208748 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature