A new dry combustion method for the simultaneous determination of total organic carbon and nitrogen in seawater |
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| Authors: | Donald C Gordon William H Sutcliffe |
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| Institution: | Fisheries Research Board of Canada, Marine Ecology Laboratory, Bedford Institute of Oceanography, Dartmouth, N.S. Canada |
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| Abstract: | A new dry combustion method for the simultaneous determination of total organic carbon and nitrogen in seawater is presented. Concentrations of total organic carbon obtained using this method average about 2.0 mg/l in surface water and 1.5 mg/l in deep water in the Northwest Atlantic. These concentrations are significantly greater than those reported using wet oxidation and wet combustion methods, but are comparable to concentrations reported by Russian workers using a similar dry combustion method. Organic nitrogen concentrations average 0.44 mg/l in surface water and 0.12 mg/l in deep water, yielding CN ratios for total organic matter of 5 and 12 respectively. |
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