globalchange  > 气候变化事实与影响
DOI: 10.1016/j.watres.2019.02.030
Scopus记录号: 2-s2.0-85062470517
论文题名:
The chemodiversity of algal dissolved organic matter from lysed Microcystis aeruginosa cells and its ability to form disinfection by-products during chlorination
作者: Gonsior M.; Powers L.C.; Williams E.; Place A.; Chen F.; Ruf A.; Hertkorn N.; Schmitt-Kopplin P.
刊名: Water Research
ISSN: 431354
出版年: 2019
卷: 155
起始页码: 300
结束页码: 309
语种: 英语
英文关键词: Algal DOM ; Disinfection by-products ; FT-ICR MS ; Microcystis aeruginosa ; Non-target screening
英文摘要: Algal-derived dissolved organic matter (ADOM) originating from lysed Microcystis aeruginosa cells was investigated as precursor material to form disinfection by-products upon disinfection with free chlorine. Non-targeted ultrahigh resolution 12 T negative mode electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) revealed high molecular diversity in solid-phase extracted and ionizable components of Microcystis aeruginosa ADOM. The toxin microcystin LR was effectively degraded by free chlorine, which was expected. However, we found a high diversity of disinfection by-products associated with the addition of free chlorine to the water-soluble and solid-phase extractable fraction of ADOM and of double-bond moieties in abundant and known unsaturated fatty acids. Aromatic DOM precursors were absent from known metabolites of Microcystis aeruginosa and no evidence for aromatic disinfection by-products (DBPs) was found, despite N-containing compounds. A large diversification of N-containing molecular formulas was observed after chlorination, which seems indicative for the breakdown and oxidation of larger peptides. Additionally, a diverse group of N-compounds with presumed chloramine functional groups was observed. This study highlights the importance to evaluate ADOM and its ability to form different DBPs when compared to allochthonous or terrestrially-derived DOM. © 2019 The Author(s)
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/121891
Appears in Collections:气候变化事实与影响

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作者单位: University of Maryland Center for Environmental Science, Chesapeake Biological Laboratory, Solomons, United States; University of Maryland Center for Environmental Science, Institute of Marine and Environmental Technology, Baltimore, United States; Helmholtz Zentrum Muenchen, Research Unit Analytical BioGeoChemistry, Neuherberg, Germany; Technische Universität München, Chair of Analytical Food Chemistry, Freising-Weihenstephan, Germany; Université Aix-Marseille, Laboratoire de Physique des Interactions Ioniques et Moléculaires (PIIM), UMR CNRS 7345, Marseille, 13397, France

Recommended Citation:
Gonsior M.,Powers L.C.,Williams E.,et al. The chemodiversity of algal dissolved organic matter from lysed Microcystis aeruginosa cells and its ability to form disinfection by-products during chlorination[J]. Water Research,2019-01-01,155
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