1. Degradation of a chiral nonylphenol isomer in two agricultural soils.
- Author
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Zhang H, Spiteller M, Guenther K, Boehmler G, and Zuehlke S
- Subjects
- Biodegradation, Environmental, Ecology methods, Gas Chromatography-Mass Spectrometry, Germany, Half-Life, Hydrogen-Ion Concentration, Soil Microbiology, Stereoisomerism, Agriculture, Endocrine Disruptors analysis, Models, Chemical, Phenols analysis, Soil analysis
- 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 NP(112) 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 NP(112) was more persistent than its parent compound. After 150 days about 13% of the initially applied NP(112) remained in the Monheim soil as its nitro-metabolite. Results of the E-screen assay revealed that the nitro-NP(112) has oestrogenic potency of 85% of that of NP(112). Furthermore, the results of chiral GC-MS analysis revealed that no chiral degradation of NP(112) occurred in this study.
- Published
- 2009
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