title: Coupling of SPME with MCC/UV-IMS as a tool for rapid on-site detection of groundwater and surface water contamination.
abstract: The combination of headspace solid phase microextraction (HS-SPME) [1] with fast chromatographic pre-separation by means of multi-capillary columns (MCC) coupled to an ion mobility spectrometer equipped with a 10.6 eV photoionisation source was applied to rapid on-site monitoring of ground and surface water contaminations. Under field conditions, water contaminants were directly detectable down to the upper microg/L range. The potential of the developed method is illustrated by measurements of BTEX, naphthalene, chlorinated alkenes and chlorinated benzenes in water. Practical results from investigations of contaminated groundwater at a former gasworks site and groundwater from the site of a metal processing plant, focusing on the key substances benzene, naphthalene and tetrachloroethene, demonstrate the feasibility of the system for field studies.
authors.affiliation: ISAS-Institute for Analytical Sciences, Bunsen-Kirchhoff-Str. 11, 44139 Dortmund, Germany.
authors.forename: G
authors.initials: G
authors.lastname: Walendzik
authors.forename: J I
authors.initials: JI
authors.lastname: Baumbach
authors.forename: D
authors.initials: D
authors.lastname: Klockow
mesh_terms: D002849:Chromatography, Gas; D013058:Mass Spectrometry / Q000295:instrumentation* / Q000379:methods*; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical