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Translating field data into GWB


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In the LLNL database (thermo.dat, or thermo.tdat in GWB10) you'll find HPO4-- and SiO2(aq) in the list of basis species. You can add these analytes to a GSS spreadsheet or to the Basis pane of any GWB app and specify their concentration in a variety of units. Your lab analysis may report concentration in terms of elemental equivalents, for example, mg/l as P. To specify this in GSS, just right-click the unit cell next to HPO4-- and choose As -> P (or for SiO2(aq), choose As -> Si). In the other GWB apps, click the black triangle next to the unit to set as P or as Si.


Hope this helps,


Brian Farrell


Aqueous Solutions LLC

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