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Seawater total alkalinity from titration data

Project description

Calkulate v2

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Calkulate calculates alkalinity from potentiometric titration data.

For v1.0.2 (for MATLAB, and only implementing the half-Gran solver) see the relevant branch.

Documentation is available at


pip install calkulate


pip install calkulate --upgrade --no-cache-dir


A paper describing Calkulate v2 is in preparation. For now, if you use any version of Calkulate in your research, please cite it as:

  • Humphreys, M. P. (2015). "Calculating seawater total alkalinity from open-cell titration data using a modified Gran plot technique," in Measurements and Concepts in Marine Carbonate Chemistry (PhD Thesis, Ocean and Earth Science, University of Southampton, UK), 25–44.

But please do check back here for any updates first (or get in touch)!

Project details

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Files for Calkulate, version 2.3.0
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