A new analytical approach for the comprehensive characterization of polar xenobiotic organic compounds downgradient of old municipal solid waste (MSW) landfills

• Published in: Analytical and bioanalytical chemistry Vol. 403; no. 9; pp. 2553 - 2561
• Main Authors: Preiss, A., Berger-Preiss, E., Elend, M., Gerling, S., Kühn, S., Schuchardt, S.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 01.07.2012; Springer
• Subjects: Analytical Chemistry; Berlin; Biochemistry; Characterization and Evaluation of Materials; Chemical properties; Chemistry; Chemistry and Materials Science; Chromatography; Chromatography, High Pressure Liquid; Contamination; Environmental aspects; Food Science; Gas Chromatography-Mass Spectrometry; Germany; Groundwater; Groundwater - analysis; Heterocyclic compounds; Identification and classification; Laboratory Medicine; Magnetic Resonance Spectroscopy; Mass Spectrometry; Mathematical analysis; Methods; Monitoring/Environmental Analysis; Municipal landfills; On-line systems; Organic compounds; Polyethylene glycol; Refuse Disposal; Sanitary landfills; Solid wastes; Spectrum analysis; Technical Note; Water Pollutants, Chemical - analysis; Water pollution; Water, Underground; Xenobiotics; Xenobiotics - analysis; Berlin; Germany; Germany, Berlin; Groundwater contamination; GC-MS; MSW landfill; 2D NMR; Polar XOCs; HPLC-MS; MS; HPLC-NMR; Leachate; H NMR; Non-target analysis
• ISSN: 1618-2642; 1618-2650
• DOI: 10.1007/s00216-012-5941-7

Groundwater samples collected downgradient from a former municipal solid waste landfill near Berlin, Germany, were analyzed by GC-MS, HPLC-MS, and HPLC-NMR hyphenated techniques to comprehensively characterize the xenobiotic organic compounds (XOCs). The focus thereby was on the detection and identification of the polar XOCs which were analyzed in the extract obtained after separation of the unpolar components by pre-extraction. HPLC-NMR and HPLC-MS runs were used to identify polar XOCs on-line or to obtain preliminary structure information on the other XOCs. These compounds were then isolated by HPLC fractionation and their structures elucidated by off-line NMR and MS investigations. A variety of polar XOCs, products of the dye industry, degradation products of polyethylene glycol, and some heterocyclic compounds could be identified. Furthermore, a semi-quantitative estimation of the identified polar compounds is given. Figure Analytical approach for a comprehensive characterization of XOCs downgradient of old MSW landfills