In particular, HPC in isotropic state exhibits an optical rotatory dispersion (ORD) curve with monotonic increase in negative rotation with decreasing wavelength .
The novelty of the proposed approach is that it allows determination of the optical rotatory dispersion for the entire visible domain, while the classical methods give this parameter for a fixed wavelength.
The phenomenon is called optical rotatory dispersion (ORD).
The increase of the HPC concentration in water from 30 to 45% does not induce important changes in the rotatory dispersion and in specific rotation.
Because of the fact that [delta] is about 100 times smaller than the rotatory dispersion, we can consider that the obtained results have enough precision and the values of the specific rotation can be used to characterize the water solutions of HPC.