Compound Specific Stable Isotope Analysis: Assessment of in situ transformation of Hexachlorocyclohexane using carbon stable isotope analysis - Softcover

Bashir, Safdar

Softcover

ISBN 10: 3838139216 ISBN 13: 9783838139210

Publisher: Südwestdeutscher Verlag für Hochschulschriften, 2014

Synopsis

One of the most promising tools for both characterizing contaminant sources and monitoring in situ degradation of organic contaminants in aquifers is compound-specific stable isotope analysis, in which the stable isotope ratios of one or more elements in a given compound are measured in order to investigate the transformation processes at work.The objective of this book was to validate the application of carbon-compound specific stable isotope analysis (CSIA) and enantiomer specific stable isotope analysis (ESIA) to characterize biotic and abiotic transformation of Hexachlorocyclohexane (HCH) in situ. Additionally, to prove that CSIA in combination with enantiomer-selective degradation of α-HCH can be applied as an effective and reliable tool for monitoring natural attenuation of HCH. The variability in enrichment factors observed for enantiomers during biotic investigation showed the preferential reactivity of enzymes for one enantiomer over the other which is not observed in abiotic studies. Thus CSIA combined with ESIA and enantiomer fractions (EF) can help to distinguish biotic and abiotic reactions taking place in situ.

About this title

About the Author

Dr. Safdar Bashir is an Assistant professor at the Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan. He did his PhD (Dr. rer. nat) from Eberhard Karls University, Tübingen in Geoscience. His main research focus is addressing the Soil and ground water contamination and their sustainable management.

Edition details

• Publisher: Südwestdeutscher Verlag für Hochschulschriften
• Publication date: 2014
• Language: English
• ISBN 10: 3838139216
• ISBN 13: 9783838139210
• Binding: Paperback
• Number of pages: 204