Cloud-point preconcentration and HPLC determination of polycyclic aromatichydrocarbons in marine sediments

Citation
V. Pino et al., Cloud-point preconcentration and HPLC determination of polycyclic aromatichydrocarbons in marine sediments, FRESEN J AN, 371(4), 2001, pp. 526-531
Citations number
30
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
0937-0633 → ACNP
Volume
371
Issue
4
Year of publication
2001
Pages
526 - 531
Database
ISI
SICI code
0937-0633(200110)371:4<526:CPAHDO>2.0.ZU;2-J
Abstract
Cloud-point methodology has been used to develop a new procedure for precon centration of polycyclic aromatic hydrocarbons previously extracted from ma rine sediment with a micellar polyoxyethylene-10-lauryl ether medium by mic rowave- or ultrasound-assisted extraction. The optimum conditions for preco ncentration and determination of PAH by HPLC with UV detection were establi shed. The optimized procedure was applied to determination of these analyte s in fortified marine sediment. The mean recoveries obtained after extracti on and preconcentration by use of microwave- or ultrasound-assisted extract ion were 105.8 and 99.5%, respectively. Precision, however, is considerably higher when extraction is performed ultrasonically.