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[Determination of Polychlorinated Dibenzo-P-Dioxins and Dibenzo-Furans in Sediment by Accelerated Solvent Extraction, Fluid Management Systems and High Resolution Gas chromatography/high Resolution Mass Spectrometry]

[Determination of Polychlorinated Dibenzo-P-Dioxins and Dibenzo-Furans in Sediment by Accelerated Solvent Extraction, Fluid Management Systems and High Resolution Gas chromatography/high Resolution Mass Spectrometry]

Xiang Li, Yao Zhang, Yizhi Sun, Weike Zhong, Yueming Qiu, Yanzhang Chen, Daning Wang

Se Pu. 2006 Jul;24(4):347-50.

PMID: 17017157

Abstract:

A rapid, sensitive and accurate method has been developed for the determination of seventeen 2, 3, 7, 8-substituted congeners of polychlorinated dibenzo-p-dioxins and dibenzo-furans (PCDD/Fs) in sediment using isotope dilution high resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS). Dibenzo-p-dioxins and dibenzo-furans were extracted from samples by accelerated solvent extraction (ASE) and then purified by fluid management systems (FMS) with silica column, alumina column and carbon column. Confirmation and quantitative analysis at pg/g level of PCDD/Fs were performed by HRGC/HRMS using voltage selective ion record (VSIR) mode. Recoveries of fifteen isotopically labeled compound solutions (LCS) and the precision and recovery standards (PAR) were found to be in the range of 49.8% -85.3% and 93.2% - 113.8%, respectively. The detection limits of the method for both 2, 3, 7, 8-tetrachloro-dibenzo-furan (TCDF) and 2, 3, 7, 8-tetrachloro-dibenzo-p-dioxin (TCDD) were determined to be 0.1 pg/g. This method not only meets the requirements of international standards, but also shortens analysis time from 2 weeks to 2 days.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP132649	Dibenzo[b,d]furan		132-64-9	Price

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