I assume this is an easy question but it seems my last math class was a
long time ago.
Usually I don't care about the exact value of my CO2 ref gas on our
gasbench system since everything is normalizied to reference materials
with known values (and working gas cancels out). I just type in a value
for the working gas in the isodat standard editor which will give a
delta value close to the correct value.
I need to calculate the CO2 value of the working gas now and my idea was
just to caluclate the things backwards. Assuming that my reference
material (e.g. NBS19) will produce a CO2 with a known value it should be
possible the calculate the delta value of the working gas etiher from
the raw delta values or the ratios given in Isodat by treating the ref
gas as the sample and the NBS 19 as the standard gas. However, sitting
in front of Isodat and the equations it is not so obvious anymore...can
anyone point me in the right direction?
Dr. Robert van Geldern
GeoZentrum Nordbayern / Applied Geosciences
University of Erlangen-Nuremberg
91054 Erlangen, Germany
mailto:[log in to unmask]
fon: +49(0)9131-85-24780 (office)
Room: O 0.106 (office)