Nilsson, Marie-Louise
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
Abstract
Chlorinated paraffins (CPs) were found in the biodegradable fraction of source separated waste from Uppsala, Sweden. We identified and quantified the CPs by multivariate evaluation of gas chromatography-electron capture detection chromatograms. Using principal component analyses (PCA) we identified different types of CP-formulations and also obtain quantitative data. PCA yielded better identifications of individual CP-formulations than visual comparison of chromatograms. Partial least squares regression gave good calibration curves of the standards, but did not work for the waste samples. No source of CPs could be identified in the waste collection chain, and as the waste samples seemed to contain at least two different CP-formulations the source was probably to be found in the waste material itself. The method was used to determine CPs in additional environmental samples, demonstrating that multivariate methods may be developed into a powerful tool for identification and quantification of complex mixture. (C) 2011 Elsevier Ltd. All rights reserved.
Keywords
Principal component analysis; Partial least squares regression; Source separated waste; Environmental quality criteria; Food contamination
Published in
Environmental Pollution
2012, volume: 163, pages: 142-148
Publisher: ELSEVIER SCI LTD
SLU Authors
Kylin, Henrik
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Linköping University
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
UKÄ Subject classification
Environmental Sciences and Nature Conservation
Publication identifier
- DOI: https://doi.org/10.1016/j.envpol.2011.12.010
Permanent link to this page (URI)
https://res.slu.se/id/publ/56587