The moles of carbons in feedstock can be easily calculated using CHNS analysis where we take C (%) as mas of C (g). Using mass (g) and atomic mass of C, mole of C can be calculated.

Is it logical to use the % GC/MS peak area and formula of any product compounds e.g C6H6 (and peak area 5% of total) to calculate the mole of C in C6H6 as under;

percentage share of C in C6H6= (72/78) *100= 92.3% >> 92.3*0.05=4.61

Moles of C=4.61/12= 0.384

and then using the following formula to calculate it wrt to feedstock.

%Molar carbon yield = (Moles of carbon in products/Moles of carbon in feedstock ) 100

Please verify if it seems logical or suggest any method to convert peak areas into mole of C.

In short, quantitative analysis are required and I have only GC/MS peak areas of compounds of bio-oil