Refractometric investigation of pectin solutions

K. Nikolova; I. Pantchev; S. Sajnov

doi:10.1117/12.619009

22 April 2005 Refractometric investigation of pectin solutions

K. Nikolova, I. Pantchev, S. Sajnov

Proceedings Volume 5830, 13th International School on Quantum Electronics: Laser Physics and Applications; (2005) https://doi.org/10.1117/12.619009
Event: 13th International School on Quantum Electronics: Laser Physics and Applications, 2004, Bourgas, Bulgaria

Abstract

This study discusses the possibility for a quantitative evaluation of pectin macromolecules bydratation, by measuring the refractive index (RI) of their solutions, using a differential laser refractometer and a laboratory-type interferometer, LI-3, Rayleigh-type. The results obtained have been discussed according to the theory of Ikegami for polyelectrolytes hydratation. Refractometer measurements of ethanol, methanol and water have been done. A theroretical link between the models of Selmeyerand Lorentz-Lorenz has been established, and by means of this link the number of electrons per volume unit of the alcohols indicated has been calculated.

Citation Download Citation

K. Nikolova, I. Pantchev, and S. Sajnov "Refractometric investigation of pectin solutions", Proc. SPIE 5830, 13th International School on Quantum Electronics: Laser Physics and Applications, (22 April 2005); https://doi.org/10.1117/12.619009

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