title: Determination of musty-odor compounds in water by gas chromatography-mass spectrometry with a needle-type sample-preparation device.
abstract: The musty-odor compounds (MOCs) 2-methylisoborneol (2-MIB) and geosmin in water samples were determined by a purge-and-trap method using a needle-type extraction device followed by gas chromatography-mass spectrometry. For the extraction of these compounds, a triple-layer-type extraction needle containing divinylbenzene and activated carbon particles as the particulate extraction media was introduced. Several experimental parameters, including the sample temperature during extraction, the addition of sodium chloride, and desorption conditions, were thoroughly optimized in this study. The detection limits for 2-MIB and geosmin were 1.0 and 0.5 ng L(-1), respectively. The method was successfully applied to the simultaneous determination of MOCs and other volatile organic compounds in tap-water samples.
authors.affiliation: Department of Applied Chemistry, University of Yamanashi.
authors.forename: Ikuo
authors.initials: I
authors.lastname: Ueta
authors.forename: Tomoki
authors.initials: T
authors.lastname: Mitsumori
authors.forename: Susumu
authors.initials: S
authors.lastname: Kawakubo
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Saito
mesh_terms: D001892:Camphanes / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry / Q000295:instrumentation / Q000379:methods*; D057230:Limit of Detection; D009284:Naphthols / Q000032:analysis*; D009339:Needles; D009812:Odorants / Q000032:analysis; D014867:Water / Q000737:chemistry*
chemical_list: D001892:Camphanes; D009284:Naphthols; D014867:Water; C005536:2-methylisoborneol; C001278:geosmin