title: Determination of mono- and sesquiterpenes in water samples by membrane inlet mass spectrometry and static headspace gas chromatography.
abstract: A membrane inlet mass spectrometric (MIMS) method is presented and compared with a static headspace gas chromatographic method (HSGC) for the determination of terpenes in water. The MIMS method provides a very simple and fast analysis of terpenes in water, detection limits being relatively low, from 0.2 mug l(-1) for monoterpenes to 2 mug l(-1) for geraniol. The analysis of terpenes by the HSGC (equipped with flame ionization detector, FID) method is more time-consuming and the detection limits (2 mug l(-1) for monoterpenes to 100 mug l(-1) for geraniol) are higher than with MIMS. However, the HSGC method has the advantage of determining individual mono- and sesquiterpene compounds, whereas MIMS provides only separation of different classes of terpenes. Both methods were applied to the analysis of mono- and sesquiterpenes in several condensation water samples of pulp and paper mills.
authors.affiliation: VTT, Chemical Technology, P.O. BOX 1401, FIN-02044 VTT, Finland; University of Helsinki, Laboratory of Analytical Chemistry, P.O. Box 55, FIN-00014 University of Helsinki, Finland.
authors.forename: M
authors.initials: M
authors.lastname: Ojala
authors.forename: R A
authors.initials: RA
authors.lastname: Ketola
authors.forename: T
authors.initials: T
authors.lastname: Mansikka
authors.forename: T
authors.initials: T
authors.lastname: Kotiaho
authors.forename: R
authors.initials: R
authors.lastname: Kostiainen