Analysis of PCBs in soils and sediments by microwave-assisted extraction, headspace-SPME and high resolution gas chromatography with ion-trap tandem mass spectrometry

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Herbert, P (Autor) Outra; Morais, S (Autor) Outra; Paiga, P (Autor) Outra; Alves, A (Autor) FEUP; Santos, L (Autor) FEUP

Revista

Título: International Journal of Environmental Analytical Chemistry

Vol. 86 Nº 6

Páginas: 391-400

ISSN: 0306-7319

Editora: Taylor & Francis

Indexação

ISI Web of Knowledge - 26 Citações

ISI Web of Science

Scopus - 26 Citações

INSPEC

Classificação Científica

CORDIS: Ciências Tecnológicas ; Ciências Tecnológicas > Engenharia

FOS: Ciências exactas e naturais > Química

Outras Informações

ID Authenticus: P-004-KRM

DOI: 10.1080/03067310500352346

Abstract (EN): A procedure for the determination of seven indicator PCBs in soils and sediments using microwave-assisted extraction (MAE) and headspace solid-phase microextraction (HS-SPME) prior to GC-MS/MS is described. Optimization of the HS-SPME was carried out for the most important parameters such as extraction time, sample volume and temperature. The adopted methodology has reduced consumption of organic solvents and analysis runtime. Under the optimized conditions, the method detection limit ranged from 0.6 to 1 ng/g when 5 g of sample was extracted, the precision on real samples ranged from 4 to 21% and the recovery from 69 to 104%. The proposed method, which included the analysis of a certified reference material in its validation procedure, can be extended to several other PCBs and used in the monitoring of soil or sediments for the presence of PCBs.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10