Academic Journal
Unveiling the mystery of chlorine radical in water by a simple methanol-based spin trapping.
| Title: | Unveiling the mystery of chlorine radical in water by a simple methanol-based spin trapping. |
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| Authors: | Wang P; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China., Wang L; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China., Xiao R; Shanghai Research Institute of Materials, Shanghai 200437, China., Qiu S; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China., Cao J; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China., Fu Y; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China., Bai S; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China., Wang Z; Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China; Technology Innovation Center for Land Spatial Eco-restoration in Metropolitan Area, Ministry of Natural Resources, 3663 N. Zhongshan Road, Shanghai, 200062, China; Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, Shanghai 200241, China. Electronic address: zhwang@des.ecnu.edu.cn. |
| Source: | Water research [Water Res] 2025 Oct 01; Vol. 285, pp. 124100. Date of Electronic Publication: 2025 Jun 24. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: Pergamon Press Country of Publication: England NLM ID: 0105072 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-2448 (Electronic) Linking ISSN: 00431354 NLM ISO Abbreviation: Water Res Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: Oxford, Pergamon Press. |
| MeSH Terms: | Methanol*/chemistry , Chlorine*/chemistry , Water*/chemistry , Spin Trapping*/methods, Cyclic N-Oxides/chemistry ; Electron Spin Resonance Spectroscopy ; Hydroxyl Radical |
| Abstract: | Both hydroxyl radical (•OH) and chlorine radical (Cl•) are recognized as significant reactive species in aquatic and atmospheric sciences. While •OH can be readily detected with the conventional spin trap, 5,5-dimethyl-1-pyrroline N-oxide (DMPO), Cl• is often considered difficult to detect by electron paramagnetic resonance (EPR) technique and has therefore been largely underexploited. In this work, we clarify the complicated reactions of Cl• with DMPO, which pose challenges for the direct detection of Cl•. To overcome this limitation, we take advantage of the differences in the products formed when methanol reacts with Cl• (i.e. •OCH (Copyright © 2025 Elsevier Ltd. All rights reserved.) |
| Competing Interests: | Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. |
| Contributed Indexing: | Keywords: Chloride; Electron paramagnetic resonance; Hydroxyl radical; Saline environment; Secondary radical spin-trapping method |
| Substance Nomenclature: | Y4S76JWI15 (Methanol) 4R7X1O2820 (Chlorine) 059QF0KO0R (Water) 3352-57-6 (Hydroxyl Radical) 0 (Cyclic N-Oxides) |
| Entry Date(s): | Date Created: 20250628 Date Completed: 20250903 Latest Revision: 20250903 |
| Update Code: | 20260130 |
| DOI: | 10.1016/j.watres.2025.124100 |
| PMID: | 40580832 |
| Database: | MEDLINE |
| ISSN: | 1879-2448 |
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| DOI: | 10.1016/j.watres.2025.124100 |