Continuous acid-free measurements of total alkalinity (United States Patent)

Inventors: Byrne R. H. (St. Petersburg, FL, US) & Liu X. (Largo, FL, US)
A system and method for the substantially continuous measurement of the total alkalinity of a sample solution, which includes, equilibrating a sample solution and a gas at a chosen CO2 fugacity across a gas permeable membrane, measuring the equilibrium pH of the equilibrated solution in an optical cell using a spectrophotometric pH indicator and calculating the total alkalinity of the solution from the equilibrium pH measurement of the solution and a known partial pressure of CO2.

Free patents online, 28 August 2018. More information.

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