Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7612963 | Journal of Chromatography A | 2014 | 6 Pages |
Abstract
A simple, cost-effective method is described for the analysis of polybrominated diphenyl ethers (PBDEs) in house dust using pressurized fluid extraction, cleanup with modified silica solid phase extraction tubes, and fluorinated internal standards. There are 14 PBDE congeners included in the method, some typically contained in the commercial mixtures used as flame retardants, and some which are not routinely reported in the peer-reviewed literature. A gas chromatographic-mass spectrometry instrumental method provides baseline separation in <20Â min, detection limits <20Â ng/g, and quantitation limits <60Â ng/g for most congeners. Method blanks contained an average concentration <Â 9Â ng/g for all congeners except BDE209 which had an average around 40Â ng/g. Spiked samples showed good accuracy with relative percent difference (RPD) <7%, and good precision with relative standard deviation <22% for all congeners except BDE209. The method was applied to the analysis of a standard dust (NIST Standard Reference Material 2585) and showed good accuracy with RPD <25% except for BDE154. Overall, this method exhibited good performance characteristics in all categories including simplicity, cost, sensitivity, selectivity, accuracy, and precision.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Walter Weathers, Maribel Colón, Avis Hines, Elin M. Ulrich,