Distinctive features of absorption spectrums binary mixtures of hydrocarbons in the wavelength range 1090-1240 nm on an example of isooctane, n-heptane, toluene, benzole

The experimentally obtained second overtones absorption spectrums of iso-octane, n-heptane, toluene, benzole which has permitted to determine characteristic wavelengths λs. Near this characteristic wavelengths the absorption of binary mixtures practically does not depend on percentage of the mixture. Is shown, that a qualitative analysis of a binary mixture of hydrocarbon is possible on the basis of the determined values λs.