The application of time-resolved spectrofluorometry to measuring benthic fluxes of organic compounds

A fiber-optic fluorometry system is used in conjunction with a benthic flux chamber in an attempt to estimate fluxes of dissolved organic carbon (DOC) and polycyclic aromatic hydrocarbons (PAH) in situ from coastal marine sediments. These initial deployments in San Diego Bay demonstrate the usefulne...

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Veröffentlicht in:Organic geochemistry 1997, Vol.26 (1), p.67-77
Hauptverfasser: Chen, R.F., Chadwick, D.B., Lieberman, S.H.
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container_title Organic geochemistry
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creator Chen, R.F.
Chadwick, D.B.
Lieberman, S.H.
description A fiber-optic fluorometry system is used in conjunction with a benthic flux chamber in an attempt to estimate fluxes of dissolved organic carbon (DOC) and polycyclic aromatic hydrocarbons (PAH) in situ from coastal marine sediments. These initial deployments in San Diego Bay demonstrate the usefulness of laser-induced fluorescence measurements for continuous DOC determinations and reveal the possibility of using time-resolved fluorescence spectroscopy to estimate PAH concentrations. DOC fluxes from these contaminated sediments are high and may be a result of chamber contamination or may be associated with easily resuspended sediment particles. Sediment fluorescence profiles are also discussed.
doi_str_mv 10.1016/S0146-6380(96)00154-4
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source Elsevier ScienceDirect Journals Complete
subjects Applied sciences
benthic fluxes
Crude oil, natural gas and petroleum products
DOC
Earth sciences
Earth, ocean, space
Energy
Exact sciences and technology
fiber-optic fluorometry
fluorescence spectroscopy
Fuels
Geology and geochemistry. Geological and geochemical prospecting. Petroliferous series
Hydrocarbons
Marine
PAH
Prospecting and exploration
Prospecting and production of crude oil, natural gas, oil shales and tar sands
Sedimentary rocks
title The application of time-resolved spectrofluorometry to measuring benthic fluxes of organic compounds
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