Determination of PCB Residues in Vegetables by GC-MS

Tie Bing Liu; Hai Yun Tu; Li Ming Han; Qiu Ping Yuan; Greg Duns

doi:10.4028/www.scientific.net/AMR.487.724

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 487Determination of PCB Residues in Vegetables by...

Determination of PCB Residues in Vegetables by GC-MS

Abstract:

This paper examines a method for the simultaneous detection of 12 different dioxin-like polychlorinated biphenyl (PCB) residues in vegetables. A qualitative and quantitative determination of PCB residues in vegetables was undertaken by a combination of high-speed freezing centrifugation, solid phase extraction, purification, concentration, and GC- MS and GC-ECD. From this combination of methods, 12 different PCBs were detected in vegetables over a linear concentration range of 0.001 to 2 µ g/L (ppb), with detection limits ranging from 0.4ppb to 0.5 ppb, a linear correlation coefficient of 0.99, recoveries ranging from 96.25%-117.5%, and a relative standard deviation ≤ 21%(RSD) .

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Periodical:

Advanced Materials Research (Volume 487)

Pages:

724-729

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.487.724

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Online since:

March 2012

Authors:

Tie Bing Liu, Hai Yun Tu, Li Ming Han, Qiu Ping Yuan, Greg Duns

Keywords:

Dioxin-Like, Freezing Centrifugation, PCBs Residues, Simultaneous Determination

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