Multi-element (C, H, Cl, Br) stable isotope fractionation as a tool to investigate transformation processes for halogenated hydrocarbons.,Environmental Science: Processes & Impacts

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Multi-element (C, H, Cl, Br) stable isotope fractionation as a tool to investigate transformation processes for halogenated hydrocarbons.
Environmental Science: Processes & Impacts ( IF 4.3 ) Pub Date : 2019/12/31 , DOI: 10.1039/c9em00498j
Ann Sullivan Ojeda ₁ , Elizabeth Phillips , Barbara Sherwood Lollar

Affiliation

Compound-specific isotope analysis (CSIA) is a powerful tool to evaluate transformation processes of halogenated compounds. Many halogenated hydrocarbons allow for multiple stable isotopic systems (C, H, Cl, Br) to be measured for a single compound. This has led to a large body of literature describing abiotic and biotic transformation pathways and reaction mechanisms for contaminants such as chlorinated alkenes and alkanes as well as brominated hydrocarbons. Here, the current literature is reviewed and a new compilation of Λ values for multi-isotopic systems for halogenated hydrocarbons is presented. Case studies of each compound class are discussed and thereby the current strengths of multi-element isotope analysis, continuing challenges, and gaps in our current knowledge are identified for practitioners of multi-element CSIA to address in the near future.

中文翻译：

多元素（C，H，Cl，Br）稳定同位素分馏作为研究卤代烃转化过程的工具。

化合物特异性同位素分析（CSIA）是评估卤代化合物转化过程的有力工具。许多卤代烃允许对单个化合物测量多个稳定的同位素系统（C，H，Cl，Br）。这导致大量文献描述了非生物和生物转化途径以及污染物的反应机理，这些污染物包括氯化烯烃和烷烃以及溴代烃。在此，对当前文献进行了综述，并提出了一种新的卤代烃多同位素体系的Λ值汇编。讨论了每种化合物类别的案例研究，从而探讨了多元素同位素分析的当前优势，持续的挑战，

更新日期：2020-03-27

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