Gas/particle partitioning of organic compounds to environmental tobacco smoke: partition coefficient measurements by desorption and comparison to urban particulate material
Article Abstract:
The distribution of the organic compounds in environmental tobacco smoke (ETS) was investigated using the desorption method. Volatile, low molecular weight compounds adsorbed quickly while less volatile compounds adsorbed slowly. Polycyclic aromatic hydrocarbons absorbed more efficiently than did n-alkanes. The rate of absorption was apparently influenced by the degree of protonation of the compounds in the ETS phase. In general, these results were consistent with those obtained in previous studies.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1996
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Desription of gas/particle sorption kinetics with an intraparticle diffusion model: desorption experiments
Article Abstract:
The desorption of a set of n-alkanes and polycyclic aromatic compounds from a particle laden filter by an intraparticle diffusion model is discussed. The diffusion/partitioning theory was used to discuss the ability of the model to describe observed behavior. Implications concerning the nature of atmospheric particles and the gas/particle partitioning process determined by probing the values of the fitted diffusion coefficients. Values derived were found to be consistent with literature values.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1993
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Gas/particle partitioning of semivolatile organic compounds to model inorganic, organic, and ambient smog aerosols
Article Abstract:
Absorptive partitioning will tend to dominate the gas/particle (G/P) partitioning of semivolatile organic compunds sorbing to urban particulate matter that contains a high concentration of secondary carbon. This observation was noted in a study of G/P partitioning of n-alkanes and polynuclear aromatic hydrocarbons sorbing to liquid dioctyl phthalate, solid ammonium sulfate, and secondary organic aerosol.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 1997
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- Abstracts: Gas/solid partitioning of semivolatile organic compounds (SOCs) to air filters. 3. An analysis of gas adsorption artifacts in measurements of atmospheric SOCs and organic carbon (OC) when using teflon membrane filters and quartz fiber filters
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