title: Sample cleanup and reversed-phase high-performance liquid chromatographic analysis of polar aromatic compounds in groundwater samples from a former gas plant.
abstract: A method for the analysis of the polar aromatic compounds 1H-quinolin-4-one (Q), 10H-acridin-9-one (A), 5H-phenanthridin-6-one (P) and 9H-fluoren-9-one (F) in aqueous solutions has been developed. The method comprises steps for sample preparation (solid-phase extraction, cleanup) and analytical determination by means of reversed-phase high-performance liquid chromatography (RP-HPLC). For the cleanup step the suitability of two different sorbents (alternative A: silica gel, alternative B: LiChrolut EN) was investigated. Alternative B depicted several advantages, in particular higher sorbent capacity, faster and less complicated handling, higher recovery and better reproducibility. For Q, A and P, reproducibility of all method steps is better than 13%, with recovery rates ranging from 76% to 105% (n=3). Alternative B was applied to groundwater samples from a former gas plant. The analytes A and P could be detected at concentrations in the micro/l range.
authors.affiliation: Division of Water Chemistry, Engler-Bunte-Institut, Universität Karlsruhe, Germany.
authors.forename: M B
authors.initials: MB
authors.lastname: Müller
authors.forename: C
authors.initials: C
authors.lastname: Zwiener
authors.forename: F H
authors.initials: FH
authors.lastname: Frimmel
mesh_terms: D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002851:Chromatography, High Pressure Liquid; D006841:Hydrocarbons, Aromatic / Q000032:analysis*; D007221:Industry; D010578:Petroleum; D013056:Spectrophotometry, Ultraviolet; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
chemical_list: D006841:Hydrocarbons, Aromatic; D010578:Petroleum; D014874:Water Pollutants, Chemical