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|dc.title||Application of micro-solid-phase extraction for the determination of persistent organic pollutants in tissue samples|
|dc.identifier.citation||Basheer, C., Narasimhan, K., Yin, M., Zhao, C., Choolani, M., Lee, H.K. (2008-04-04). Application of micro-solid-phase extraction for the determination of persistent organic pollutants in tissue samples. Journal of Chromatography A 1186 (1-2) : 358-364. ScholarBank@NUS Repository.|
|dc.description.abstract||A novel, simple and efficient method for determining persistent organic pollutants (POPs) in tissue samples has been developed. This technique involves the use of simultaneous microwave-assisted digestion (MAD) and micro-solid-phase extraction (μ-SPE), in which the sorbent is held within a propylene membrane envelope, with gas chromatographic-mass spectrometric (GC-MS) analysis. The POPs studied included eleven organochlorine pesticides and five polychlorinated biphenyl congeners. Optimization of the MAD-μ-SPE parameters was performed. The relative standard deviations (RSDs) of the method ranged from 0.14 to 12.7%. Correlation coefficients up to 0.9999 were obtained across a concentration range of 1.25-50 ng g-1. The method detection limits for POPs ranged from 0.002 to 0.009 ng g-1. A preliminary study applying the MAD-μ-SPE procedure to human ovarian cancer tissue showed that it was capable of detecting the presence of a wide spectrum of different POPs in benign and malignant tumors. © 2007 Elsevier B.V. All rights reserved.|
|dc.subject||Micro-solid phase extraction|
|dc.subject||Persistent organic pollutants|
|dc.description.sourcetitle||Journal of Chromatography A|
|Appears in Collections:||Staff Publications|
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