title: Simultaneous quantitative analysis of anionic, cationic, and nonionic surfactants in water by electrospray ionization mass spectrometry with flow injection analysis.
abstract: A rapid method is described for the quantitative analysis of anionic, cationic, and nonionic surfactants in water samples by flow injection analysis coupled to electrospray ionization mass spectrometry (FIA/ESI-MS). All surfactants were isolated by liquid-liquid extraction and quantified using labeled triethoxylated nonylphenol ([13C6]-NP3EO) and sodium dibutylnaphthalenesulfonate as internal standards. FIA/ESI-MS was performed by alternating both positive and negative ionization modes, which allows simultaneous analysis of most common surfactants in a short time. Quality parameters of the method, such as linear range, repeatability, reproducibility, and limits of detection were studied. This method was applied to the analysis of wastewater treatment plant effluents from Catalonia (NE Spain).
authors.affiliation: Mass Spectrometry Laboratory, Department of Ecotechnologies, IIQAB-CSIC, C/Jordi Girona 18-26, 08034-Barcelona, Spain.
authors.forename: Mónica
authors.initials: M
authors.lastname: Barco
authors.forename: Carles
authors.initials: C
authors.lastname: Planas
authors.forename: Oscar
authors.initials: O
authors.lastname: Palacios
authors.forename: Francesc
authors.initials: F
authors.lastname: Ventura
authors.forename: Josep
authors.initials: J
authors.lastname: Rivera
authors.forename: Josep
authors.initials: J
authors.lastname: Caixach
mesh_terms: D000838:Anions / Q000032:analysis; D002412:Cations / Q000032:analysis; D017022:Flow Injection Analysis / Q000379:methods; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D013501:Surface-Active Agents / Q000032:analysis* / Q000737:chemistry; D014867:Water / Q000032:analysis / Q000737:chemistry
chemical_list: D000838:Anions; D002412:Cations; D013501:Surface-Active Agents; D014867:Water