[Piper plot alkalinity confusion]

Fantastic! Got my piper plot. Thanks Brain.

[Piper plot alkalinity confusion]

I'm stuck on how to use Bicarbonate in GSS and making a Piper plot. My lab data comes in the typical form of:

 

Bicarbonate (as CaCO3) mg/L

Carbonate (as CaCO3) mg/L

 

But there are no instructions on how to use the lab data in GSS. Firstly, there is no analyte called "Bicarbonate" so I assume I add it as a User define analyte, choosing mg/L as CaCO3 in the units column? Does this mean GSS/Gtplot will automatically calculate it as HCO3 (eg. divide by 50.04 (mg/meq))?

 

Carbonate is more straight forward as it populates as Carbonate Alkalinity mg/L as CaCO3. Easy copy/paste from lab data into GSS. But does it also undergo a conversion to CO3?

 

It would be really handy to see a GSS screenshot of the analytes/parameters list needed for a Piper plot. The video tutorial is not helpful in this regard as the complete list is not shown

 

Thanks,

Marie