DOI: 10.1016/j.watres.2017.11.053
Scopus记录号: 2-s2.0-85035788697
论文题名: Storage effects on quantity and composition of dissolved organic carbon and nitrogen of lake water, leaf leachate and peat soil water
作者: Heinz M. ; Zak D.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 130 起始页码: 98
结束页码: 104
语种: 英语
英文关键词: Cold storage
; Dissolved organic carbon (DOC)
; Dissolved organic nitrogen (DON)
; Freezing
; Size exclusion chromatograpy (SEC)
Scopus关键词: Biological materials
; Cold storage
; Dissolution
; Fluorescence spectroscopy
; Freezing
; Lakes
; Nitrogen
; Optical properties
; Organic polymers
; Size exclusion chromatography
; Soil moisture
; Spectrum analysis
; Stream flow
; Dissolved organic carbon
; Dissolved organic matters
; Dissolved organic nitrogen
; Lake water samples
; Phragmites australis
; Sample concentration
; Size exclusion
; Spectral properties
; Organic carbon
; dissolved organic matter
; fresh water
; lake water
; organic carbon
; organic nitrogen
; peat
; soil water
; carbon
; nitrogen
; chemical composition
; chromatography
; dissolved organic carbon
; dissolved organic matter
; dissolved organic nitrogen
; fluorescence spectroscopy
; freezing
; grass
; lake water
; leachate
; leaf litter
; low temperature
; optical property
; peat soil
; porewater
; quantitative analysis
; soil water
; storage
; Article
; cryopreservation
; fluorescence spectroscopy
; freezing
; leaching
; peatland
; Phragmites australis
; plant leaf
; priority journal
; size exclusion chromatography
; spectroscopy
; chemistry
; cold
; lake
; plant leaf
; soil
; spectrofluorometry
; Phragmites australis
; Carbon
; Cold Temperature
; Freezing
; Lakes
; Nitrogen
; Plant Leaves
; Soil
; Spectrometry, Fluorescence
英文摘要: This study aimed to evaluate the effects of freezing and cold storage at 4 °C on bulk dissolved organic carbon (DOC) and nitrogen (DON) concentration and SEC fractions determined with size exclusion chromatography (SEC), as well as on spectral properties of dissolved organic matter (DOM) analyzed with fluorescence spectroscopy. In order to account for differences in DOM composition and source we analyzed storage effects for three different sample types, including a lake water sample representing freshwater DOM, a leaf litter leachate of Phragmites australis representing a terrestrial, ‘fresh’ DOM source and peatland porewater samples. According to our findings one week of cold storage can bias DOC and DON determination. Overall, the determination of DOC and DON concentration with SEC analysis for all three sample types were little susceptible to alterations due to freezing. The findings derived for the sampling locations investigated here may not apply for other sampling locations and/or sample types. However, DOC size fractions and DON concentration of formerly frozen samples should be interpreted with caution when sample concentrations are high. Alteration of some optical properties (HIX and SUVA254) due to freezing were evident, and therefore we recommend immediate analysis of samples for spectral analysis. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113035
Appears in Collections: 气候减缓与适应
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作者单位: Department of Chemical Analytics and Biogeochemistry, Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB), Müggelseedamm 301, Berlin, 12587, Germany; Faculty of Agriculture and Environment, Landscape Ecology and Site Evaluation, University of Rostock, Justus-von-Liebig-Weg 6, Rostock, 18059, Germany; Department of Bioscience, Aarhus University, Vejlsøvej 25, Silkeborg, 8600, Denmark; Institute for Ecological Chemistry, Plant Analysis and Stored Product Protection, Julius Kühn-Institut, Federal Research Centre for Cultivated Plants, Königin-Luise-Str. 19, Berlin, 14195, Germany
Recommended Citation:
Heinz M.,Zak D.. Storage effects on quantity and composition of dissolved organic carbon and nitrogen of lake water, leaf leachate and peat soil water[J]. Water Research,2018-01-01,130