[csinha]

I am working on a lab and I am unsure how to get the concentration of three gases in an unknown sample. I was required to create a calibration curve for peak area vs volume of analyte injected. The analyte gas is composed of methyl ethyl ketone, toluene and 2-butanol. The unknown sample contains these same gases. I determined the concentration of moles of each  in the calibration solution by pV=nRT where V is the volume of analyte injected into the GC (50 ul). I do not know how to find the molar concentration of the gases in the unknown sample. I know that peak area is proportional to concentration of an analyte but I do not know how to determine it with the information I have.

[Borek]

If I understand correctly what the problem is - use the calibration curve to determine apparent volume of the sample injected.