Use of solid-phase microextraction to detect and quantify gas-phase dicarbonyls in indoor environments.
Authors
Pacolay-BD; Ham-JE; Wells-JR
Source
J Chromatogr A 2006 Oct; 1131(1-2):275-280
Abstract
Solid-phase microextraction (SPME) was evaluated for the detection and quantification of the gas-phase dicarbonyls, glyoxal (GLY) and methylglyoxal (MGLY). Additionally, polydimethylsiloxane (PDMS), polydimethylsiloxane/divinylbenzene (PDMS/DVB), and carbowax/divinylbenzene (CW/DVB) fibers were tested to determine the optimum fiber for detection of these species. GLY and MGLY were derivatized with O-(2,3,4,5,6-pentafluorobenzyl)-hydroxylamine hydrochloride (PFBHA), extracted with SPME from headspace or bag chamber and then analyzed by GC/MS. The PDMS/DVB SPME fiber for on-fiber derivatization and subsequent sampling for gas-phase methylglyoxal provided the optimum combination of analytical reproducibility and sensitivity. Linearity of the calibration curve was achieved across a range of 11-222mug/m(3) (4-75ppb).
Keywords
Chromatographic-analysis; Analytical-processes; Analytical-chemistry; Indoor-air-pollution; Indoor-environmental-quality
Contact
Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV 26505, USA
Document Type
Journal Article
Priority Area
Research Tools and Approaches: Exposure Assessment Methods
Source Name
Journal of Chromatography A
