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Simultaneous quantification of poly-dispersed anionic, amphoteric and nonionic surfactants in simulated wastewater samples using C18 high-performance liquid chromatography-quadrupole ion-trap mass spectrometryThis paper describes the development of a guantitative method for direct and simultaneous determination of three frequently encountered surfactants, amphoteric (cocoamphoacetate, CAA), anionic (sodium laureth sulfate, SLES), and nonionic (alcohol ethoxylate, AE) using a reversed-phase C18 HPLC coupled with an ESI ion-trap mass spectrometer (MS). Chemical composition, ionization characteristics and fragmentation pathways of the surfactants are presented. Positive ESI was effective for all three surfactants in agueous methanol buffered with ammonium acetate. The method enables rapid determinations in small sample volumes containing inorganic salts (up to 3.5 g L(-1)) and multiple classes of surfactants with high specificity by applying surfactant specific tandem mass spectrometric strategies. It has dynamic linear ranges of 2-60, 1.5-40, 0.8-56 mg L(-1) with R2 egual or greater than 0.999, 0.98 and 0.999 (10 microL injection) for CAA, SLES, and AE, respectively.
Document ID
20050172658
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Levine, Lanfang H.
(NASA Kennedy Space Center Cocoa Beach, FL United States)
Garland, Jay L.
Johnson, Jodie V.
Date Acquired
August 23, 2013
Publication Date
January 14, 2005
Publication Information
Publication: Journal of chromatography. A
Volume: 1062
Issue: 2
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other

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