The ability to obtain quantitative information simply from Raman spectra is a subject of considerable interest. This capability exists, does not require sophisticated computer packages and is demonstrated for a mixture of cyclohexane and toluene by two independent methods. These, respectively, require the use of an external standard and the application of a linear least squares fit method to generate the observed spectrum from the pure components. Whilst these techniques avoid contamination of the analyte by the addition of an internal standard, they have, furthermore, been shown to give accurate, reproducible results.