Prediction of reaction rate constants of hydroxyl radical with chemicals in water

© 2020 Water Environment Federation.

Bibliographische Detailangaben
Veröffentlicht in:Water environment research : a research publication of the Water Environment Federation. - 1998. - 93(2021), 6 vom: 28. Juni, Seite 934-939
1. Verfasser: Yu, Xinliang (VerfasserIn)
Weitere Verfasser: Liu, Jun
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Water environment research : a research publication of the Water Environment Federation
Schlagworte:Journal Article aqueous phase hydroxyl radical reaction rate constants structure-activity relationships support vector machine Organic Chemicals Water Pollutants, Chemical Water 059QF0KO0R mehr... Hydroxyl Radical 3352-57-6
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520 |a The rate constants (kOH ) of the reactions between organic micropollutants with hydroxyl radical (•OH) in aqueous systems are an important parameter to evaluate the persistence of organic compounds in the environment. In this paper, a support vector machine (SVM) model based on five descriptors was built to predict the reaction rate constants (log K = (log kOH )/MW ). The quantitative structure-activity relationship (QSAR) model of log K was obtained from a training set (600 compounds) and validated with a test set (395 compounds). The coefficients of determination R2 of the training and test sets are 0.923 and 0.925, respectively. The results suggest that the SVM model developed in this work possesses satisfactory prediction ability. PRACTITIONER POINTS: The rate constants of the reactions of organic micropollutants with •OH in aqueous systems were investigated. SVM model was established for the reaction rate constants (log K = (log kOH )/MW ). Only five molecular descriptors were used to predict 995 log K. A large data set was used for the test set (395 compounds) 
650 4 |a Journal Article 
650 4 |a aqueous phase 
650 4 |a hydroxyl radical 
650 4 |a reaction rate constants 
650 4 |a structure-activity relationships 
650 4 |a support vector machine 
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650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a Water  |2 NLM 
650 7 |a 059QF0KO0R  |2 NLM 
650 7 |a Hydroxyl Radical  |2 NLM 
650 7 |a 3352-57-6  |2 NLM 
700 1 |a Liu, Jun  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Water environment research : a research publication of the Water Environment Federation  |d 1998  |g 93(2021), 6 vom: 28. Juni, Seite 934-939  |w (DE-627)NLM098214292  |x 1554-7531  |7 nnas 
773 1 8 |g volume:93  |g year:2021  |g number:6  |g day:28  |g month:06  |g pages:934-939 
856 4 0 |u http://dx.doi.org/10.1002/wer.1485  |3 Volltext 
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