1. Degradation of a chiral nonylphenol isomer in two agricultural soils
- Author
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Zhang, Haifeng, Spiteller, Michael, Guenther, Klaus, Boehmler, Gabriele, and Zuehlke, Sebastian
- Subjects
NONYLPHENOL ,ORGANIC compound content of soils ,POLLUTION measurement ,GAS chromatography/Mass spectrometry (GC-MS) ,METABOLITES ,CHEMICAL kinetics - Abstract
Abstract: The degradation of a chiral nonylphenol isomer, 4-(1-ethyl-1,4-dimethylpentyl)phenol (NP
112 ), in two agricultural soils from Monheim and Dortmund, Germany has been studied. The degradation of NP112 and the formation of a nitro-nonylphenol metabolite were determined by means of GC–MS analysis. The degradation followed bi-exponential order kinetics, with half-life of less than 5 days in both soils. The nitro-metabolite was found at different concentration levels in the two soils. The nitro-metabolite of NP112 was more persistent than its parent compound. After 150 days about 13% of the initially applied NP112 remained in the Monheim soil as its nitro-metabolite. Results of the E-screen assay revealed that the nitro-NP112 has oestrogenic potency of 85% of that of NP112 . Furthermore, the results of chiral GC–MS analysis revealed that no chiral degradation of NP112 occurred in this study. [Copyright &y& Elsevier]- Published
- 2009
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