Carbon isotope fractionation of di-(2-ethylhexyl)-phthalate during photosensitized degradation by •OH and SO4·- for characterization of reaction mechanisms

Ning Min,Jun Yao,Hao Li,Junjie Zhu,Steffen Kümmel,Thomas Schaefer,Hartmut Herrmann,Hans Hermann Richnow

Chemical Engineering Journal（2023）

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摘要

•Mechanism analysis of radical reaction at aromatic ring and side chain of phthalates.•Determination of carbon isotope fractionation factors for H abstraction (HAT) and radical adducts formation (RAF)•Probing radical reactions with phthalates used as plasticizer.•Inverse isotope fractionation characterizes preferential C-H bond cleavage at tertiary carbon.

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关键词

Compound-specific stable isotope analysis,Di-(2-ethylhexyl) phthalate,Inverse carbon isotopic fractionation,Hydroxyl radicals,Sulfate radicals,Fe(III) formed radicals,Photosensitization reactions

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