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You are here: Home / Archives for refractive index

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Filed Under: Training-Sales Tagged With: Autopol, density, Density Meter, flavor, Fragrances, refractive index, refractometer, Training-Sales

Measurement of Concentration Dependence of Refractive Index to Enhance Gel Permeation Chromatography for Polymer Characterization

Measurement of Concentration Dependence of Refractive Index to Enhance Gel Permeation Chromatography for Polymer Characterization Author: Gabor Kiss Date: October 2019 Background: One of the workhorse techniques for polymer characterization is Gel Permeation Chromatography (GPC) which is used to measure molecular weight, molecular weight distribution, degree of branching, radius of gyration, solvent power, etc. The […]

Filed Under: Uncategorized, White Papers Tagged With: dn/dc, dndc, Gel Permeation Chromatography, GPC, refractive index, refractometer, refractometers

Refractive Index – RI Measurement of Solids & Films

RI Measurement of Solids, Semi Solids and Films. RI measurement of solids and semi-solids is useful in labs for monitoring quality to insure consistency of transparency, pigmentation, or batch quality. Refractive Index might be measured on incoming materials or finished products. Highly accurate measurements are possible with the right refractometer and a method to measure […]

Filed Under: White Papers Tagged With: Films, glass, Plastic, R/I, refractive index, refractometer, resins, Semi-solids, silicone, Solids, Tape

Refractometer Uses in Industry and Selection

Refractometer

Refractometer Uses in Industry and Selection By Angelo DePalma, PHD Refractometer uses: Characterizes fluids based on their refractive index –the refraction occurs due to the change in the speed of light as it travels through a material of one density to one of different density. By definition a vacuum has a refractive index of 1, […]

Filed Under: White Papers Tagged With: Brix, laboratory, R/I, refractive index, refractometer, refractometers, refractometry

Refractometer Calibration – 2 Point Method

Rudolph J157

Refractometer Calibration, 2 point method, Rudolph Research J157 – Video Transcript Refractometer Calibration resource – for laboratory refractometer users utilizing a Rudolph Research Automatic Refractometer. Hi, I am John Ciccarella, Service manager of the most innovative line of refractometer instruments made today from Rudolph Research Analytical.   John Ciccarella , Rudolph Research, Service Manager with a […]

Filed Under: Uncategorized, White Papers Tagged With: calibrate, calibration, calibration fluid, digital, laboratory, R/I, refractive index, refractometer, refractometer calibration, refractometers

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