DOI: 10.1016/j.marpolbul.2014.06.022
Scopus记录号: 2-s2.0-84905723344
论文题名: Compositions and constituents of freshwater dissolved organic matter isolated by reverse osmosis
作者: Zhang Y. ; Huang W. ; Ran Y. ; Mao J.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 85, 期: 1 起始页码: 60
结束页码: 66
语种: 英语
英文关键词: Composition
; Dissolved organic matter
; Isolation
; Reverse osmosis
; Stable carbon isotope
Scopus关键词: Chemical analysis
; Isotopes
; Nuclear magnetic resonance spectroscopy
; Reverse osmosis
; Water
; C analysis
; Concentration factors
; Dissolved organic matters
; High molecular weight
; Isolation
; Reverse osmosis systems
; Stable carbon isotopes
; Structural differences
; Biological materials
; carbohydrate
; carbon
; dissolved organic matter
; fresh water
; lignin
; lipid
; protein
; cation
; fresh water
; organic compound
; water pollutant
; carbon isotope
; chemical composition
; dissolved organic matter
; freshwater input
; nuclear magnetic resonance
; stable isotope
; water treatment
; article
; biosorption
; biotransformation
; carbon nuclear magnetic resonance
; chemical composition
; concentration (parameters)
; concentration factor
; controlled study
; High Molecular Weight
; isolation procedure
; molecular weight
; quantum yield
; reverse osmosis
; river
; sea
; water pollution
; water transport
; analysis
; chemistry
; filtration
; nuclear magnetic resonance spectroscopy
; osmosis
; water pollutant
; Carbohydrates
; Cations
; Filtration
; Fresh Water
; Lipids
; Magnetic Resonance Spectroscopy
; Oceans and Seas
; Organic Chemicals
; Osmosis
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Dissolved organic matter (DOM) from riverine and lacustrine water was isolated using a reverse osmosis (RO) system. Solid-state 13C nuclear magnetic resonance (13C NMR) was used to quantitatively evaluate the compositions and constituents of DOM, which are compared with previous investigations on marine DOM. Results indicated that concentration factor (CF) was a key metric controlling yield and sorption of DOM on the RO system. The sorption was likely non-selective, based on the 13C NMR and δ13C analyses. Carbohydrates and lipids accounted for 25.0-41.5% and 30.2-46.3% of the identifiable DOM, followed by proteins (18.2-19.8%) and lignin (7.17-12.8%). The freshwater DOM contained much higher alkyl and aromatic C but lower alkoxyl and carboxyl C than marine DOM. The structural difference was not completely accounted for by using structure of high molecular weight (HMW) DOM, suggesting a size change involved in transformations of DOM during the transport from rivers to oceans. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85365
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academy of Sciences, Beijing 100049, China; Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, United States
Recommended Citation:
Zhang Y.,Huang W.,Ran Y.,et al. Compositions and constituents of freshwater dissolved organic matter isolated by reverse osmosis[J]. Marine Pollution Bulletin,2014-01-01,85(1)