Plot data on Eh vs pH diagram

[Christophe Simbo]

Hey there,

I'd like to know how to plot data on Eh vs pH diagram. I am able to construct the diagram with all the species but I cannot figure out how to plot these data (see the attached figure).

Is it through Excel? or...I did it on Act2

 

Thank you,

[Jia Wang]

Hello Christophe,

You can overlay data points from a GSS spreadsheet to an Act2 diagram. You would first need to prepare a GSS file that contains the axis variables on your diagram, in this case, Eh and pH. Save the GSS file. In Act2, create your diagram and go to File --> Open --> Scatter Data... --> select the GSS file your had prepared. After you hit Ok or Apply in the Scatter Data dialog, Act2 will read the data points and project them onto the diagram. For more information and example on how to use scatter data, refer to section 5.6 Scatter data in the GWB Essentials User Guide.  

Hope this helps,
Jia Wang
Aqueous Solutions LLC