期刊
ANALYTICA CHIMICA ACTA
卷 569, 期 1-2, 页码 113-118出版社
ELSEVIER
DOI: 10.1016/j.aca.2006.03.100
关键词
PBDE; stir bar sorptive extraction; water analysis; thermal desorption; GC-MS
An optimised method using stir bar sorptive extraction (SBSE) for the determination of nine bromodiphenil ether (Lake Michigan mix) from water samples was developed. Recoveries near to 100% were found by using 20 mm x 0.5 rum (length x film thickness) PDMS commercial stir bars with 100 mL spiked water samples and 20% methanol addition and an extraction period of 25 h. Method sensitivity, linearity, repeatability and reproducibility have been also studied. Detection limits between 0.4 and 9.4 ng/L were calculated for the combination of SBSE and thermal desorption-GC-MS. The procedure was applied a real sample, a surface water contaminated by the effluents, and the results were compared with a classical liquid-liquid extraction method. (c) 2006 Elsevier B.V All rights reserved.
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