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Thermal fluorescence quenching properties of dissolved organic matter
Water Research, 2005The fluorescence excitation-emission matrices of dissolved organic matter (DOM) are investigated between 10 and 45 degrees C for river and waste waters and organic matter standards. With increased temperature, fluorescence intensity is quenched. It is demonstrated that for a range of river and wastewater samples, that tryptophan-like fluorescence ...
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The fluorescence of dissolved organic matter in the Mid-Atlantic Bight
Deep Sea Research Part II: Topical Studies in Oceanography, 2002Abstract The fluorescence of dissolved organic matter has been measured on three cruises covering the Mid-Atlantic Bight in the spring of 1994 and 1996 and the summer of 1996. An attempt at a “mass” balance of fluorescent dissolved organic matter (FDOM) on the shelf suggests that more FDOM is present during the spring than during the summer and that ...
R.F Chen, Y Zhang, P Vlahos, S.M Rudnick
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Biological lability of streamwater fluorescent dissolved organic matter
Limnology and Oceanography, 2012We investigated the biological lability of fluorescent dissolved organic matter (FDOM) from a temperate Piedmont stream. Plug‐flow bioreactors, colonized and maintained with natural stream water, were used to determine the concentrations of stream‐water biodegradable dissolved organic carbon (BDOC) and relative concentrations of FDOM within ...
Rose M. Cory, Louis A. Kaplan
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Influence of pH on the fluorescence of dissolved organic matter
Marine Chemistry, 1982Abstract During two surveys (June, 1980 and March, 1981) the influence of the pH on the fluorescence (mFl) was studied in the Ems-Dollart estuary. In the natural pH range (7–9) the fluorescence (mFl) increased by 16.4%. To express the fluorescence (mFl) at a fixed pH, a formula was derived (see eq. 1).
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Environmental Science and Pollution Research, 2013
The Yangtze Estuary is heavily influenced by coast-continent geochemical processes and anthropogenic activity; thus, the source and distribution of chromophoric dissolved organic matter (CDOM) in the estuary are strongly impacted by these processes. Here, a series of samples were collected from across the Yangtze Estuary to investigate the source and ...
Qiyuan, Sun +4 more
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The Yangtze Estuary is heavily influenced by coast-continent geochemical processes and anthropogenic activity; thus, the source and distribution of chromophoric dissolved organic matter (CDOM) in the estuary are strongly impacted by these processes. Here, a series of samples were collected from across the Yangtze Estuary to investigate the source and ...
Qiyuan, Sun +4 more
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The freshwater dissolved organic matter fluorescence–total organic carbon relationship
Hydrological Processes, 2007AbstractThe fluorescent properties of dissolved organic matter (DOM) enable comparisons of humic‐like (H‐L) and fulvic‐like (F‐L) fluorescence intensities with dissolved organic carbon (DOC) in aquatic systems. The fluorescence‐DOC relationship differed in gradient, i.e.
Susan A. Cumberland, Andy Baker
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Environmental Microbiology, 2012
Summary Recent evidence suggests a key role of bacterioplankton in shaping the composition of the dissolved organic matter (DOM) pool in aquatic systems, not only through consumption but also through production of specific compounds, but the latter process is still not well understood.
François, Guillemette +1 more
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Summary Recent evidence suggests a key role of bacterioplankton in shaping the composition of the dissolved organic matter (DOM) pool in aquatic systems, not only through consumption but also through production of specific compounds, but the latter process is still not well understood.
François, Guillemette +1 more
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Fluorescence quenching effects of antibiotics on the main components of dissolved organic matter
Environmental Science and Pollution Research, 2015Dissolved organic matter (DOM) in wastewater can be characterized using fluorescence excitation-emission matrix and parallel factor (EEM-PARAFAC) analysis. Wastewater from animal farms or pharmaceutical plants usually contains high concentration of antibiotics.
Peng-Fei, Yan +4 more
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Characterization of dissolved organic matter in the Black Sea by fluorescence spectroscopy
Nature, 1990THE natural fluorescence properties of sea water provide a means of elucidating the complex chemical composition and diverse sources of dissolved organic matter (DOM) in sea water1–6. The positions of excitation and emission maxima for a wide range of natural water samples show remarkable similarity7.
Paula G. Coble +3 more
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Fluorescent dissolved organic matter in marine sediment pore waters
Marine Chemistry, 2004Abstract Fluorescent dissolved organic matter (FDOM) in sediment pore waters from contrasting sites in the Chesapeake Bay and along the mid-Atlantic shelf/slope break was studied using three-dimensional fluorescence spectroscopy. Benthic fluxes of FDOM were also examined at the Chesapeake Bay sites. The major fluorescence peaks observed in these pore
David J Burdige +2 more
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