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- W2135156897 abstract "In this work, stir bar sorptive extraction and liquid desorption was combined with MEKC and diode-array detection (SBSE-LD-MEKC-DAD) for the determination of polynuclear aromatic hydrocarbons (PAHs) in aqueous medium, using biphenyl, fluorene, anthracene, phenanthrene, fluoranthene and pyrene as model compounds. MEKC-DAD conditions and parameters affecting SBSE-LD efficiency are fully discussed. Assays performed on aqueous samples spiked at trace levels, yielded recoveries ranging from 55.5 +/- 6.1% (pyrene) to 70.7 +/- 7.1% (anthracene), under optimized experimental conditions. The methodology proved to be nearly described by the octanol-water partition coefficients (K(PDMS/W) approximately K(O/W)). The analytical performance showed good precision (<12.0%), suitable detection limits (2-11 microg/L) and convenient linear dynamic ranges (r(2)>0.99) from 5 to 25 microg/L for anthracene and 25 to 125 microg/L for the remaining compounds. The application of the proposed methodology to environmental water, sediments and fish bile matrices demonstrated good selectivity and accuracy. SBSE-LD combined with MEKC-DAD was shown to be an easy, reliable and robustness methodology, as well as a good analytical alternative to monitor environmental priority pollutants." @default.
- W2135156897 created "2016-06-24" @default.
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- W2135156897 date "2006-11-29" @default.
- W2135156897 modified "2023-10-16" @default.
- W2135156897 title "Combining stir bar sorptive extraction and MEKC for the determination of polynuclear aromatic hydrocarbons in environmental and biological matrices" @default.
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- W2135156897 doi "https://doi.org/10.1002/elps.200600210" @default.
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