It is established change of character of stimulated Raman scattering spectrum of ceruloplasmin by powerful
laser radiation. This change is connected with destruction peptides connections in molecule ceruloplasmin. It
is shown, that dependence of integrated intensity of the first stokes line of stimulated Raman scattering
spectrum of ceruloplasmin from its concentration in solutions is linear. It can be used for definition of
concentration of protein in physiological solutions.