Record Details

Method report for total organic carbon measurements GEOSECS

ScholarsArchive at Oregon State University

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Title Method report for total organic carbon measurements GEOSECS
Names Oregon State University. Geochemical Ocean Sections Study Group (creator)
Gordon, Louis Irwin, 1928- (creator)
Oregon State University. School of Oceanography (creator)
Date Issued 1975-06 (iso8601)
Internet Media Type application/pdf
Abstract The analytical method employed for the Total Organic Carbon (TOC)
project in the Geochemical Ocean Sections Study (GEOSECS) is described
in detail. The method generally follows that of Menzel and Vaccaro as
modified by several subsequent workers including the GEOSECS group at
Oregon State University which carried out the TOC project. Samples were
drawn from 17 stations in the Atlantic and 35 stations in the Pacific. The
cleanest shipboard conditions possible were maintained. The samples and
reagents were sealed at sea into glass ampoules after purging the inorganic
carbon dioxide. Completion of the oxidation, measurement, and data reduction
was done ashore. The data have been transmitted via the GEOSECS
Operations Group to the National Oceanographic Data Center. The precisions
attained, including sampling errors, were 1.4 and 1.7 micro moles of
organic carbon per kg (μM/kg) in the Atlantic and Pacific cruises, respectively
(expressed as average standard deviations). Accuracy is estimated
at plus or minus 10%. The mean TOC observed for the deep (>1 km)
oceans was 35.3 μM/kg.
Genre Technical Report
Topic Carbon -- Measurement -- Methodology
Identifier http://hdl.handle.net/1957/8399

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