TITLE

Stir-bar-sorptive extraction and ultra-high-performance liquid chromatography–tandem mass spectrometry for simultaneous analysis of UV filters and antimicrobial agents in water samples

AUTHOR(S)
Pedrouzo, Marta; Borrull, Francesc; Marcé, Rosa Maria; Pocurull, Eva
PUB. DATE
August 2010
SOURCE
Analytical & Bioanalytical Chemistry;Aug2010, Vol. 397 Issue 7, p2833
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Stir-bar-sorptive extraction (SBSE) with liquid desorption (LD) and ultra-high-performance liquid chromatography–electrospray ionization triple-quadrupole tandem mass spectrometry (UHPLC–(ESI)MS–MS) were used for analysis of six personal care products in environmental water: four UV filters (2,2-dihydroxy-4-methoxybenzophenone, benzophenone-3, octocrylene, and octyldimethyl- p-aminobenzoic acid) and two antimicrobial agents (triclocarban and triclosan). Experimental conditions that affect SBSE-LD sorption efficiency (extraction time and temperature, sample pH, and ionic strength) and desorption efficiency (solvent, temperature, and time) were optimized. The method proved to be sensitive—a 50-mL sample was used to determine these compounds in environmental waters at trace levels. The detection limits of the analytical method were 2.5 ng L−1 for river water and 5–10 ng L−1 for effluent and influent sewage water. In river waters, benzophenone-3 was found at levels from 6 ng L−1 to 28 ng L−1 and triclosan at levels
ACCESSION #
52299485

 

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