This title appears in the Scientific Report : 2014 

Online electro-Fenton-mass spectrometry reveals 2,4′,5-trichlorobiphenyl oxidation products and binding to organic matter
Chen, Lei (Corresponding author)
Küppers, Stephan / Wang, Zheng / Xiang, Xinyi / Cao, Shiwei
Analytik; ZEA-3
Environmental chemistry letters, 12 (2014) 2, S. 329-334
Berlin [u.a.] Springer 2014
Journal Article
Global Processes: Integrated Monitoring and Modelling
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Electrochemistry–mass spectrometry is used to simulate redox reactions in many research disciplines because this technique is fast and provides information on compound metabolites. However, the analysis of the degradation of refractory organic pollutants by reactive oxygen species is difficult to achieve by the electrochemistry step. Therefore, here we use online electro-Fenton-mass spectrometry to study for the first time the oxidation of 2,4′,5-trichlorobiphenyl [polychlorinated biphenyl (PCB) 31] by reactive oxygen species and the binding reactions of PCB degradation products with model substances of natural organic matter. The degradation products were identified by coupled Q Trap mass spectrometry. We observed a binding of a degradation product with γ-l-glutamyl-l-cysteinyl-glycine. We propose a transformation pathway. We conclude that online electro-Fenton-mass spectrometry is a promising technique to study the oxidation of refractory organic pollutants and further binding of degradation products with natural organic matter.