Absorptivity for liquids by Beer–Lambert law (given molar absorption coefficient,concentration)
absorptivity for liquids
molar absorption coefficient of the absorber
distance the light travels through the material (i.e. the path length)
concentration of absorbing species in the material
Beer-Lambert law states that there is a logarithmic dependence between the transmissivity of light through a substance and the product of the absorption coefficient of the substance and the distance the light travels through the material.