Mooketsi Posted October 6, 2009 Share Posted October 6, 2009 Hi, I have a problem when using React and Spec8. When i enter the data on the basis and exclude alkalinity the % ion balance error is low ~ 13%.whe plotting this data on Gplot the data is skewed towards the cations !Howver, when I include the alkalinity the error increases to 90% with the plotted data balancing. Is there anything that that i'm doing wrong? Quote Link to comment Share on other sites More sharing options...
Tom Meuzelaar Posted October 6, 2009 Share Posted October 6, 2009 Hi, I have a problem when using React and Spec8. When i enter the data on the basis and exclude alkalinity the % ion balance error is low ~ 13%.whe plotting this data on Gplot the data is skewed towards the cations !Howver, when I include the alkalinity the error increases to 90% with the plotted data balancing. Is there anything that that i'm doing wrong? Hi: Can you tell me what version of the software you are using? (Click on the Help - About React menu option in the React module). Regards, Tom Meuzelaar RockWare, Inc. Quote Link to comment Share on other sites More sharing options...
Mooketsi Posted October 7, 2009 Author Share Posted October 7, 2009 its version 8.0 I subsequently upgraded to 8.0.5 with the patch but the problem persist! Quote Link to comment Share on other sites More sharing options...
Tom Meuzelaar Posted October 9, 2009 Share Posted October 9, 2009 its version 8.0 I subsequently upgraded to 8.0.5 with the patch but the problem persist! I am able to reproduce the 90% imbalance error, but not the 13%, as I'm not sure how you've configured your bicarbonate units, but maybe this will help... Note that constraining your Basis using carbonate alkalinity vs. bicarbonate concentration is setting up a completely different problem: if you constrain your Basis using 1728 mg/kg carbonate alkalinity, this is the equivalent ~.017 molal CO3-- (at your very alkaline pH of 12.5) if you constrain your Basis using 1728 mg/kg HCO3- component, this is the equivalent of ~.029 molal CO3--, or roughly twice the alkalinity as the first configuration The latter configuration results in a much higher negative charge imbalance. I hope that helps, Tom Meuzelaar RockWare, Inc. Quote Link to comment Share on other sites More sharing options...
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