Design and Evaluation of a Novel Diffusion Separator for Measuring Gas/Particle Distributions of Semivolatile Organic Compounds

Barbara J. Turpin; Shi Ping Liu; Kathryn S. Podolske; Marcos S.P. Gomes; Steve J. Eisenreich; Peter H McMurry

doi:10.1021/es00048a020

Design and Evaluation of a Novel Diffusion Separator for Measuring Gas/Particle Distributions of Semivolatile Organic Compounds

Barbara J. Turpin, Shi Ping Liu, Kathryn S. Podolske, Marcos S.P. Gomes, Steve J. Eisenreich, Peter H McMurry

Mechanical Engineering

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27 Scopus citations

Abstract

A new gas/particle diffusion separation sampler was developed with the purpose of definitely measuring semivolatile organic compounds (SOCs) in atmospheric gases and particles. A laminar flow separator is able to separate a known fraction of the gas phase from the aerosol because gases diffuse orders of magnitude faster than particles. This fraction of the gas phase is collected downstream of the separator, extracted with supercritical fluid, and analyzed by gas chromatography/mass selective detection. The particulate phase is the difference between measured total and gas-phase concentrations. The separator performance agreed well with theory. Ultimately, we plan to use several separators in parallel to collect semivolatile organic compounds to further the understanding of gas/particle partitioning and the fate of semivolatile species in the atmosphere.

Original language	English (US)
Pages (from-to)	2441-2449
Number of pages	9
Journal	Environmental Science and Technology
Volume	27
Issue number	12
DOIs	https://doi.org/10.1021/es00048a020
State	Published - 1993

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title = "Design and Evaluation of a Novel Diffusion Separator for Measuring Gas/Particle Distributions of Semivolatile Organic Compounds",

abstract = "A new gas/particle diffusion separation sampler was developed with the purpose of definitely measuring semivolatile organic compounds (SOCs) in atmospheric gases and particles. A laminar flow separator is able to separate a known fraction of the gas phase from the aerosol because gases diffuse orders of magnitude faster than particles. This fraction of the gas phase is collected downstream of the separator, extracted with supercritical fluid, and analyzed by gas chromatography/mass selective detection. The particulate phase is the difference between measured total and gas-phase concentrations. The separator performance agreed well with theory. Ultimately, we plan to use several separators in parallel to collect semivolatile organic compounds to further the understanding of gas/particle partitioning and the fate of semivolatile species in the atmosphere.",

author = "Turpin, {Barbara J.} and Liu, {Shi Ping} and Podolske, {Kathryn S.} and Gomes, {Marcos S.P.} and Eisenreich, {Steve J.} and McMurry, {Peter H}",

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doi = "10.1021/es00048a020",

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T1 - Design and Evaluation of a Novel Diffusion Separator for Measuring Gas/Particle Distributions of Semivolatile Organic Compounds

AU - Turpin, Barbara J.

AU - Liu, Shi Ping

AU - Podolske, Kathryn S.

AU - Gomes, Marcos S.P.

AU - Eisenreich, Steve J.

AU - McMurry, Peter H

PY - 1993

Y1 - 1993

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AB - A new gas/particle diffusion separation sampler was developed with the purpose of definitely measuring semivolatile organic compounds (SOCs) in atmospheric gases and particles. A laminar flow separator is able to separate a known fraction of the gas phase from the aerosol because gases diffuse orders of magnitude faster than particles. This fraction of the gas phase is collected downstream of the separator, extracted with supercritical fluid, and analyzed by gas chromatography/mass selective detection. The particulate phase is the difference between measured total and gas-phase concentrations. The separator performance agreed well with theory. Ultimately, we plan to use several separators in parallel to collect semivolatile organic compounds to further the understanding of gas/particle partitioning and the fate of semivolatile species in the atmosphere.

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Design and Evaluation of a Novel Diffusion Separator for Measuring Gas/Particle Distributions of Semivolatile Organic Compounds

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