title: Feasibility of detection and quantification of gas-phase carbonyls in indoor environments using PFBHA derivatization and solid-phase microextraction (SPME).
abstract: Solid-phase microextraction (SPME) was evaluated for the detection and quantification of the gas-phase carbonyls: citronellal, glyoxal, methylglyoxal, and beta-ionone. Prepared air samples containing the carbonyl compounds were collected at a flow rate of 2.8 L min(-1) in an impinger containing a 25% reagent water/75% methanol collection liquid. The aqueous samples were then derivatized with O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA), extracted with a PDMS/DVB coated SPME fiber, and analyzed by GC-MS. Detection limits with a sample air volume of 76 L were calculated to be 0.03 ppbv, 0.34 ppbv, 0.12 ppbv, and 0.28 ppbv for citronellal, glyoxal, methylglyoxal, and beta-ionone, respectively.
authors.affiliation: Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, MS-3030, Morgantown, WV 26505, USA.
authors.forename: Bruce D
authors.initials: BD
authors.lastname: Pacolay
authors.forename: Jason E
authors.initials: JE
authors.lastname: Ham
authors.forename: James E
authors.initials: JE
authors.lastname: Slaven
authors.forename: J R
authors.initials: JR
authors.lastname: Wells
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D005740:Gases / Q000032:analysis*; D006838:Hydrocarbons / Q000737:chemistry*; D006898:Hydroxylamines / Q000737:chemistry*; D005466:Fluorocarbons
chemical_list: D000393:Air Pollutants; D005740:Gases; D006838:Hydrocarbons; D006898:Hydroxylamines; C010277:Florox Reagent; D005466:Fluorocarbons