期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1218, 期 5, 页码 673-677出版社
ELSEVIER
DOI: 10.1016/j.chroma.2010.11.088
关键词
Quaternary ammonium compounds (quats); Liquid chromatography mass spectrometry (LC-MS); Solid phase extraction (SPE); Marine environment; Seawater analysis
资金
- Royal Commission
A method for the simultaneous determination of two biocidal quaternary ammonium compounds; didecyldimethylammonium chloride (didecyldimethyl quat) and dodecylbenzyldimethylammonium chloride (benzyl quat), in seawater by solid phase extraction (SPE) followed by liquid chromatography-mass spectrometry (LC-MS) was developed. The optimised procedure utilised off-line extraction of the analytes from seawater using polymeric (Strata-X) SPE cartridges. Recoveries ranged from 80 to 105%, with detection limits at the low parts-per-trillion (ng/l) level for both analytes. To demonstrate sensitivity, environmental concentrations were measured at three different locations along the North East coast of England with measured values in the range 120-270 ng/l. (C) 2010 Elsevier B.V. All rights reserved.
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