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Titolo: Clossed-vessel assisted microwave extraction of polychlorinated biphenyls in marine mussels
Autore: Carro, N; Garcia, I; Llompart, M;
- Indirizzi:
- Ctr Control Calidad Medio Marino, Vilagarcia de Arousa 36611, Pontevedra, Spain Ctr Control Calidad Medio Marino Vilagarcia de Arousa Pontevedra Spain 36611 Fac Quim, Dept Quim Analit Nutr & Bromatol, Santiago De Compostela 15706, Spain Fac Quim Santiago De Compostela Spain 15706 o De Compostela 15706, Spain
- Titolo Testata:
- ANALUSIS
fascicolo: 8,
volume: 28,
anno: 2000,
pagine: 720 - 724
- SICI:
- 0365-4877(200010)28:8<720:CAMEOP>2.0.ZU;2-3
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- ORGANIC POLLUTANTS; SEDIMENTS; ENERGY; GALICIA; SOILS; PCBS;
- Keywords:
- Microwave Assisted Solvent Extraction (MASE) polychlorinated biphenyls (PCBs); sample preparation; gas chromatography-electron capture detector marine mussels;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Physical, Chemical & Earth Sciences
- Citazioni:
- 20
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Carro, N Ctr Control Calidad Medio Marino, Peirao de Vilaxoan S-N, Vilagarcia de Arousa 36611, Pontevedra, Spain Ctr Control Calidad Medio Marino Peirao de Vilaxoan S-N Vilagarcia de Arousa Pontevedra Spain 36611
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- Citazione:
- N. Carro et al., "Clossed-vessel assisted microwave extraction of polychlorinated biphenyls in marine mussels", ANALUSIS, 28(8), 2000, pp. 720-724
Abstract
A reliable and simple procedure to extract polychlorinated biphenyls (PCBs) from marine mussels using microwave energy is proposed. Freeze-dried mussels were subjected to MASE (Microwave Assisted Solvent Extraction) in a closed-vessel microwave system with n-pentane-sodium hydroxide (5 %) or dichloromethane-pentane (1:1) at different temperatures (70 and 90 degreesC), theextraction time was 10 minutes. Sample extract cleanup procedure was performed by using alumina. Gas chromatography-mass spectrometry and gas chromatography-electron capture detector were employed for individual congener identification and determination. The influence of the following variables on microwave extraction of PCBs has been studied: extraction temperature,, solvent volume, solvent nature, cleanup procedure time and volume of sodium hydroxide solution. Recoveries for PCBs were between 77 and 106 % with relative standard deviation between 2 to 20 %. Validation of the extraction process was carried out by processing a certified reference material. Microwave Assisted Solvent Extraction was compared to Soxhlet extraction.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/01/21 alle ore 01:46:47