Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1026, Issue 1-2, Pages 289-293Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2003.10.114
Keywords
water analysis; solid-phase extraction; sunscreen agents
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This study describes a procedure for the enrichment, separation and quantification of four major UV filters in natural waters. Solid-phase extraction combined with liquid chromatography and photodiode array detection (LC-UV-DAD), and gas chromatography with mass spectroscopy (GC-MS) were employed for the analyses. LC of the four compounds with surfactant-modified hydro-organic eluents gave satisfactory resolution of overlapping peaks. In GC, a significant improvement of the detection limits was attained, but only three compounds could be detected. The method was validated for, and applied to, various water samples prone to UV filter accumulation due to recreational activities. Recoveries from real samples were 86-99% with LOQs as low as 0.5 ng/l depending on the sample volume and the analytical procedure. (C) 2003 Elsevier B.V. All rights reserved.
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