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J Mass Spectrom

Title:		Analysis of polar hydrophilic aromatic sulfonates in waste water treatment plants by CE/MS and LC/MS
Author(s):		Loos R; Riu J; Alonso MC; Barcelo D;
Address:		"Department of Environmental Chemistry, IIQAB-CSIC, Barcelona, Spain"
Journal Title:		J Mass Spectrom
Year:		2000
Volume:		35
Issue:		10
Page Number:		1197 - 1206
DOI:		10.1002/1096-9888(200010)35:10<1197::AID-JMS51>3.0.CO;2-O
ISSN/ISBN:		1076-5174 (Print) 1076-5174 (Linking)
Abstract:		"The present work describes the development and optimization of a capillary (zone) electrophoresis/mass spectrometric (CE/MS) analysis method for polar hydrophilic aromatic sulfonates (ASs). The compounds were detected by negative ion electrospray ionization (NIESI) and selected ion monitoring (SIM). In comparison with CE/UV, for CE/MS a lower-concentration volatile ammonium acetate buffer (5 mM) without organic modifier and a higher separation voltage were better suited for separation. Sensitivity of CE/MS was slightly better than for CF/UV, with the limit of detection (LOD) ranging between 0.1 and 0.4 mg l(-1). For verification of the CE/MS results, ASs were also analysed by ion-pair liquid chromatography/diode array UV detection coupled in series with electrospray mass spectrometry (IPC/DAD/ESI-MS). Real water samples of different waste water treatment plants (WWTPs) in Catalonia (NE Spain) were extracted by solid-phase extraction (SPE) with LiChrolut EN and analysed with CE/MS and LC/MS. ASs were found in influent and effluent water samples of the WWTPs in the microg l(-1) concentration range. LC/MS offered a higher separation efficiency and sensitivity than CE/MS. Therefore with LC/MS more compounds could be identified in the WWTPs. The persistency of the ASs was distinct: some compounds were well degraded during the water treatment process, while others were quite persistent"
Keywords:		"Arylsulfonates/*analysis Electrophoresis, Capillary/*methods Environmental Monitoring/*methods Spain Spectrometry, Mass, Electrospray Ionization/*methods *Waste Disposal, Fluid Water Pollutants, Chemical/*analysis;"
Notes:		"MedlineLoos, R Riu, J Alonso, M C Barcelo, D eng Research Support, Non-U.S. Gov't England 2000/12/08 J Mass Spectrom. 2000 Oct; 35(10):1197-206. doi: 10.1002/1096-9888(200010)35:10<1197::AID-JMS51>3.0.CO; 2-O"