How to find concentration using Gas Chromatography results

I managed to get sample peaks 1 and 2 and their areas are 47855 and 381339 uV/s respectively

I plugged these information into a formula, and I get

47855/381339 = sample 1 concentration/sample 2 concentration

I know that the concentrations are in volume %

So what is the next step to find the concentrations? If it matters much, the samples are the products of a distillation, and sample B is the preferred form, so 85% of all products is sample B. Also, the volume of distillate is 1.0 mL

Thanks for your time.

It all depends on whether you need the precise concentration, or relative concentration.

If relative, then you assume the response to the detector for each peak is the same, so the concentrations are the relative % of the total response. So you have 48,000/318,000 = % of the minor component which is 15%, and that means the major component is 85%.

If you want precise concentrations, then it requires determining the response factors, and using standards.

This actually won't work since you need internal standards to quantitate gc results. This is because different molecules have different response factors for gas chromatographic analysis and these response factors also differ by the kind of detector you are using, e.g flame ionization, thermal conductivity, electron capture). Now having said that, if you ignore this and assume that the responses are identical (which is highly unlikely), you could just add up to two peak areas and divide each peak area by this sum (times 100) to get the percentage of each component in your sample.