Gas-Wall Partitioning of Oxygenated Organic Compounds: Measurements, Structure-Activity Relationships, and Correlation with Gas Chromatographic Retention Factor. Yeh, G., K. & Ziemann, P., J. Aerosol Science and Technology, 6826(October):00-00, 2015.
Gas-Wall Partitioning of Oxygenated Organic Compounds: Measurements, Structure-Activity Relationships, and Correlation with Gas Chromatographic Retention Factor [pdf]Paper  Gas-Wall Partitioning of Oxygenated Organic Compounds: Measurements, Structure-Activity Relationships, and Correlation with Gas Chromatographic Retention Factor [link]Website  abstract   bibtex   
ABSTRACTGas-wall partitioning of fifty oxygenated organic compounds was investigated by using gas chromatography to monitor time-dependent gas-phase concentrations of authentic standards added to a large Teflon environmental chamber. Compounds included C8–C14 monofunctional ketones and alcohols, C5–C9 monoacids, and C4–C10 diols with linear and cyclic structures. Measured time constants for reaching gas-wall partitioning equilibrium ranged from ˜10–100 min with an average value of ˜30 min and exhibited no obvious trend with compound structure, whereas the extent of equilibrium partitioning to the walls ranged from ˜0–100% and increased with increasing carbon number and with functional group composition in the order ketones < alcohols < monoacids < diols. When results were modeled using an approach analogous to one commonly used to describe absorptive gas-particle partitioning in terms of compound vapor pressure and aerosol mass loading it was determined that the absorptive properties of the Teflon film wa...

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