期刊
ANALYTICA CHIMICA ACTA
卷 648, 期 2, 页码 178-182出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2009.06.062
关键词
Focused ultrasonic-assisted extraction; Microwave assisted extraction; Polycyclic aromatic hydrocarbons; Sediment; Mussel tissue
资金
- Basque Government through IMPRES
- Spanish Ministry of Science and Technology (MCYT) [VEM2003-20083-C06-04]
Focused ultrasonic-assisted extraction (FUSE) is a new and particular technique based on the cavitation effect. In this work, the focused ultrasound assisted extraction was studied and developed for the extraction of polycyclic aromatic hydrocarbons from marine sediments and mussel tissues. The variables influencing the extraction (amplitude of the ultrasound pulse, the extraction time and the solvent) were studied by a full factorial design and a central composite design. As a result, flat response surfaces were obtained and the most convenient conditions were 45% of ultrasound amplitude. 120 s of extraction time and 5 mL of acetone. Both accuracy and precision of the method were evaluated by means of two certified reference materials (marine sediment and mussel tissue) and the results were also compared to those obtained by microwave assisted extraction. (C) 2009 Elsevier B.V. All rights reserved.
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