Abstract
In this study, a method for the determination of organic micro-pollutants, i.e. personal care products such as synthetic musk fragrances, household bactericides, organophosphate flame retardants and plasticizers, as well as phthalates in sludge, has been developed. This method is based on lyophilisation and accelerated solvent extraction followed by clean-up steps, i.e. solid phase extraction and size exclusion chromatography. The determination is performed by gas chromatography coupled to mass spectrometry. Stable isotope-labelled compounds such as musk xylene (MX D15), tri-n-butylphosphate (TnBP D27) and triphenylphosphate (TPP D15) were used as internal standards. Recovery rates were determined to be 36–114% (with typical relative standard deviation of 5% to 23%) for the target compounds. The limit of detection was 3–30 ng g−1, and the limit of quantification was 10–100 ng g−1 dry matter.
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Acknowledgements
The authors acknowledge the support of the Environmental Protection Agency of Northrhine Westphalia through the project “BASPIK”, of the Ministry for Economics through the ProInno/AIF project “Abbau von organischen Schadstoffen im Rahmen der Klärschlammvererdung” and xenobiotic groups of University of Duisburg-Essen as well as the skilled technical laboratory help of Jennifer Hardes for cooperation. Additionally the authors are indebted to the co-operating waste water treatment plant for the possibility to sample their sludge for method development. The authors also acknowledge the support from the project “In situ characterization of microbial degraders of triclosan and methyl-triclosan from wastewater treatment plants” from the Danish research council FTP.
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Chen, X., Bester, K. Determination of organic micro-pollutants such as personal care products, plasticizers and flame retardants in sludge. Anal Bioanal Chem 395, 1877–1884 (2009). https://doi.org/10.1007/s00216-009-3138-5
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DOI: https://doi.org/10.1007/s00216-009-3138-5