title: Application of Headspace Solid-Phase Microextraction for Determination of Chloro-Organic Compounds in Sewage Samples.
abstract: Solid phase microextraction (SPME) has been optimized and applied to the determination of the volatile halogenated compounds (VHCs) and semi-volatile halogenated compounds (SVHCs). Three types of SPME fiber coated with different stationary phases (PDMS-100 mum, CAR/PDMS-75 mum, PDMS/DVB-65 mum) were used to examine their extraction efficiencies for the compounds tested. Experimental parameters such as the selection of SPME coatings, extraction time, and addition of salts were studied. The carboxen-polydimethylsiloxane (CAR/PDMS) fiber appears to be the most suitable for the determination of VHCs. Analytical parameters such as linearity, limit of detection, and precision were also evaluated. Application of ECD detector for the determination of VHCs and SVHCs allows their determination on the low concentration level, ranging from 0.005 to 0.8 mug/L(-1). The HS-SPME-GC/ECD procedure gave good analytical precision expressed as relative standard deviation (RSD) (ranged from 5.08% to 8.07%) for a concentration level of 5 mug/L(-1) and good linearity (r(2) > 0.98) in a wide calibration range. The applied HS-SPME-GC/ECD method was found to be a quick and effective technique for the determination of microtrace amounts of volatile and semi-volatile halogenated compounds in samples containing high amounts of various organic compounds.
authors.affiliation: Chair of Chemistry and Environmental Protection, Faculty of Chemical Technology and Engineering, University of Technology and Agriculture, Seminaryjna 3 St. 85-326, Bydgoszcz, Poland.
authors.forename: Grażyna
authors.initials: G
authors.lastname: Wejnerowska
authors.forename: Jerzy
authors.initials: J
authors.lastname: Gaca
references.citation: J Chromatogr A. 2004 Feb 13;1026(1-2):9-18
references.pmid: 14870711
references.citation: J Chromatogr A. 2004 Apr 16;1033(2):193-203
references.pmid: 15088739
references.citation: Talanta. 1997 Mar;44(3):373-82
references.pmid: 18966755
references.citation: J Chromatogr A. 2000 Oct 6;893(2):367-82
references.pmid: 11073305
references.citation: Chemosphere. 2001 Oct;45(3):275-84
references.pmid: 11592416
references.citation: J Chromatogr A. 2004 Jan 30;1025(1):3-9
references.pmid: 14753664
references.citation: J Chromatogr B Analyt Technol Biomed Life Sci. 2004 Feb 5;800(1-2):325-30
references.pmid: 14698274
references.citation: Anal Bioanal Chem. 2002 Nov;374(5):932-41
references.pmid: 12434252
references.citation: J Chromatogr A. 2004 Sep 3;1048(1):67-71
references.pmid: 15453420
references.citation: J Chromatogr A. 2003 Dec 22;1021(1-2):157-64
references.pmid: 14735984
references.citation: J Chromatogr A. 2002 Jan 11;943(1):1-13
references.pmid: 11820270