Refractive index of solution

The dielectric constants may be replaced by the squares of the respective refractive indexes of solution and solvent, which yields... 

Refractometer or differential refractometer for measuring the refractive index of solutions... 

Refractometer. An instrument for determining the refractive index of solutes. Most of these instruments use photometric readout systems. 

Vl = volume fraction of analyte 7], = refractive index of pure analyte 172 = refractive index of pure solvent j] = refractive index of solution in sample cell... 

The refractive index of a pure sucrose solution is an accurate measure of the concentration of dissolved substance. Stolle (39) found little variation in the refractive index of solutions of different sugars (sucrose, dextrose, levulose and lactose) at the same concentration. Investigations by Main (40), Schonrock (41) and Landt (42) resulted in the adoption of a standard table of refractive indices of sugar solutions by the International Commission for Uniform Methods of Sugar Analysis in 1936. 

Refractive index of solute less than that of mobile phase (RI detector). 

Here we denote the refractive index of solution by the letter n as pi means the clieinical potential of the ith component in solution. 

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