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Supercritical fluid extraction and GC detection of p,p1-DDE and PCB congeners in some samples of dying species from Sardinia

Boatto, Gianpiero and Nieddu, Maria and Carta, Antonio and Chessa, Giannina and Faedda, Maria Virginia and Cerri, Riccardo (2003) Supercritical fluid extraction and GC detection of p,p1-DDE and PCB congeners in some samples of dying species from Sardinia. Fresenius Environmental Bulletin, Vol. 12 (5), p. 435-441. ISSN 1018-4619. Article.

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Abstract

In an environmental pollution research some wild animals, deceased due to accidental causes, were collected from all over Sardinia. In order to detect the possible residues of unknown pollutants the isolated livers of these animals, previously lyophilized, were analyzed. First, by a GC-MS method, we identified the p,p1-DDE and some PCBs belonging to 5, 6, 7, 8 series PCBs. Later we set up a method for quantification of these compounds, using chicken liver as a model, by GC-ECD. The spiked chicken liver, free from p,p1-DDE and PCBs, was lyophilized and extracted by supercritical fluid extraction (SFE), subsequently the solutions obtained were subjected to cleanup by solid phase extraction (SPE). Finally, this method was employed to quantify p,p1-DDE and PCBs in the samples of the specimens collected.

Item Type:Article
ID Code:4493
Status:Published
Refereed:Yes
Uncontrolled Keywords:Environmental analysis, extraction methods, GC-ECD, GC-MS, liver
Subjects:Area 03 - Scienze chimiche > CHIM/08 Chimica farmaceutica
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > Istituto zooprofilattico sperimentale della Sardegna, Sassari
001 Università di Sassari > 01 Dipartimenti > Farmaco, chimico, tossicologico
Publisher:PSP - Parlar Scientific Publications
ISSN:1018-4619
Deposited On:06 Sep 2010 19:06

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