Alexandra Posted April 27, 2011 Share Posted April 27, 2011 Hi, I have a few questions regarding alkalinity calculations using both SpecE8 and React: 1) Is the alkalinity calculated as total alkalinity (including species other than carbonate species), or is it only calculated as carbonate alkalinity? 2) If total alkalinity includes other species, which species are included? 3) Can other alkalinity units be used for the calculation (e.g., meq)? I'm trying to calculate dissolved CO2(aq) concentrations in natural waters based on pH and Alkalinity measurements (have converted the values to mg/kg CaCO3) however the numbers obtained with GWB (v. 7.0 Professional) result in very different values for CO2(aq) compared to Minteq and Phreeqc for some of our samples. Thanks, Ale Quote Link to comment Share on other sites More sharing options...
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