Automated Titration System for Calcium in Sea-Water
Author Information
Author(s): L. Anderson, A. Granli
Primary Institution: Chalmers University of Technology and University of Gothenburg
Hypothesis
Can a compact automated titration system effectively determine calcium levels in sea-water using a personal computer?
Conclusion
The automated titration system successfully determined calcium concentrations in sea-water with high precision during the YMER-80 expedition.
Supporting Evidence
- About 300 calcium titrations were performed during the 50 days of the YMER expedition.
- The mean value of calcium concentration from deep water titrations was 10-205 mMw with a precision of 0.16%.
- The system operated effectively without communication failures during the expedition.
Takeaway
This study shows that a small computer can help measure calcium in sea-water accurately, even on a ship.
Methodology
The titration system used a personal computer to control a modified motor burette and colorimeter for high-precision calcium measurement.
Limitations
The only issue encountered was voltage drops in the power-line during geological winch operations.
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