The Kubelka-Munk theory is generally used for the analysis of diffuse reflectance spectra obtained from weakly absorbing samples. It provides a correlation between reflectance and concentration. The concentration of an absorbing species can be determined using the Kubelka Munk formula:
F (R) = (1–R)²/2R = k/s = Ac/s |
where,
R = reflectance
k = absorption coefficient
s = scattering coefficient
c = concentration of the absorbing species
A = absorbance
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