Document Detail


Determination of petroleum contamination in shellfish using solid phase micro-extraction with gas chromatography-mass spectrometry.
MedLine Citation:
PMID:  12043016     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Headspace solid phase micro-extraction (HS-SPME) has been applied as a sampling technique for the determination of petroleum contamination in shellfish using capillary gas chromatography-mass spectrometry (GC-MS). A poly(dimethylsiloxane) fused silica fibre (100 microm thickness) was found to be satisfactory for the extraction of a range of aliphatic hydrocarbons (HCs) from homogenised shellfish tissues. The SPME conditions, including temperature, salt content, extraction time and desorption temperature, were optimised for a range of aliphatic HCs (C9-C20). A methyl silicone column GC (12 m x 0.20 mm, 0.33 microm layer thickness) was used with a temperature programme from 40 to 260 degrees C and the HCs were determined within a mass range of m/ z=50-550 in electron impact mode. Calibration range was from 10 to 5000 ng/g with linear correlation coefficients ( r(2)) of 0.982 for nonane to 0.997 for octadecane. Detection limits for aliphatic HCs, spiked into shellfish (mussel) tissues, varied from 3.6 ng/g (tetradecane) to 51 ng/g (eicosane) and relative standard deviation (% RSD) values ranged from 1.4% (hexadecane) to 24.3%(eicosane).
Authors:
Mary A Stack; Sharon O'Connell; Kevin J James
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Publication Detail:
Type:  Journal Article     Date:  2002-05-07
Journal Detail:
Title:  Analytical and bioanalytical chemistry     Volume:  373     ISSN:  1618-2642     ISO Abbreviation:  Anal Bioanal Chem     Publication Date:  2002 Jun 
Date Detail:
Created Date:  2002-06-03     Completed Date:  2002-07-18     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  101134327     Medline TA:  Anal Bioanal Chem     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  147-52     Citation Subset:  IM    
Affiliation:
Ecotoxicology Research Unit, Department of Chemistry, Cork Institute of Technology, Bishopstown, Cork, Ireland. mstackenvdept@eircom.net
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MeSH Terms
Descriptor/Qualifier:
Animals
Calibration
Environmental Monitoring
Gas Chromatography-Mass Spectrometry / methods*
Petroleum / analysis*
Sensitivity and Specificity
Shellfish / analysis*
Water Pollutants, Chemical / analysis*
Chemical
Reg. No./Substance:
0/Petroleum; 0/Water Pollutants, Chemical

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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