Measuring Dissolved Organic Carbon and Nitrogen in Seawater
Author Information
Author(s): Xi Pan, Richard Sanders, Alan D. Tappin, Paul J. Worsfold, Eric P. Achterberg
Primary Institution: National Oceanography Centre Southampton, University of Southampton
Hypothesis
The high-temperature combustion technique can effectively measure dissolved organic carbon and total dissolved nitrogen in marine waters.
Conclusion
The developed system allows for accurate and simultaneous measurement of dissolved organic carbon and nitrogen in seawater samples.
Supporting Evidence
- The system provided low detection limits and excellent linear ranges for both DOC and TDN.
- The results of deep oceanic water certified reference materials showed good agreement with certified values.
- The methodology allows for high sample throughput and minimizes contamination risks.
Takeaway
Scientists created a new tool to quickly and accurately measure important nutrients in ocean water, which helps us understand how carbon and nitrogen move in the ocean.
Methodology
The study used a coupled HTC TOC-NCD system for automated and simultaneous determination of dissolved organic carbon and total dissolved nitrogen in seawater samples.
Limitations
The study may not account for all variables affecting DOC and TDN concentrations in different marine environments.
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