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Partition coefficients of selected environmentally important volatile organic compounds determined by gas–liquid chromatography with polydimethylsiloxane stationary phase

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Title: Partition coefficients of selected environmentally important volatile organic compounds determined by gas–liquid chromatography with polydimethylsiloxane stationary phase
Authors: Kloskowski, Adam1, Chrzanowski, Wojciech1 wojtek@chem.pg.gda.pl, Pilarczyk, Michał1, Namieśnik, Jacek2
Source: Journal of Chemical Thermodynamics. Jan2005, Vol. 37 Issue 1, p21-29. 9p.
Subjects: Partition coefficient (Chemistry), Chromatographic analysis, Volatile organic compounds, Gas chromatography, Organic compounds
Abstract: Abstract: In this paper, partition coefficients (distribution constants) of 14 organic compounds of environmental importance (frequently determined in indoor air) between the gas and liquid phase (polydimethylsiloxane, PDMS) are presented, determined by two gas chromatographic methods: isothermal elution and temperature programmed elution using the LTPRI (linear temperature programme retention index) approach. We examined applicability of this approach to polar compounds. We took efforts to ensure best possible accuracy and trace the possible sources of error. Precision was estimated by reproducing the results using four chromatographic columns differing in diameter and stationary phase coating thickness. We consider some factors influencing the determination of thermodynamic quantities by gas chromatography and suggest some improvements. [Copyright &y& Elsevier]
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Database: Engineering Source
Description
Abstract:Abstract: In this paper, partition coefficients (distribution constants) of 14 organic compounds of environmental importance (frequently determined in indoor air) between the gas and liquid phase (polydimethylsiloxane, PDMS) are presented, determined by two gas chromatographic methods: isothermal elution and temperature programmed elution using the LTPRI (linear temperature programme retention index) approach. We examined applicability of this approach to polar compounds. We took efforts to ensure best possible accuracy and trace the possible sources of error. Precision was estimated by reproducing the results using four chromatographic columns differing in diameter and stationary phase coating thickness. We consider some factors influencing the determination of thermodynamic quantities by gas chromatography and suggest some improvements. [Copyright &y& Elsevier]
ISSN:00219614
DOI:10.1016/j.jct.2004.07.020