G01N 31/221, G01N 21/63, G01N 2021/8405, G01N 33/004, G01N 33/18, Y10T 436/204998, B01J 2219/00966
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.
Byrne, Robert H. and Liu, Xuewu, "Continuous acid-free measurements of total alkalinity" (2018). USF Patents. 1062.
University of South Florida