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You are here: Home / Archives for laboratory

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

Optical Rotation – Specific Rotation Measurement Procedures – Rudolph Research Polarimeter

Source Video: Polarimeter Measurement Procedures to Determine Optical Rotation / Specific Rotation Video Transcript from the Rudolph Research Video Library This video covers how to fill cells and make a (Optical Rotation and Specific Rotation) measurements using a Rudolph polarimeter equipped with the exclusive and patented Temptrol heating and cooling system. Although this demonstration was […]

Filed Under: White Papers Tagged With: Automatic, electronic, laboratory, Optical Rotation, polarimeter, Polarimeter Measurement, polarimeters, Specific Rotation

Polarimeter Cell Cleaning Prior to Making a Measurement

Cleaning a Polarimeter Sample Cell – Video Transcript Video location: Polarimeter Sample Cell Cleaning Procedures This video gives a brief overview of the proper method of cleaning a Rudolph polarimeter cell. This video is relevant to; 40T Temptrol polarimeter cell supplied with the Autopol IV-T, V, V plus and VI – 40T Polarimeter cell is […]

Filed Under: White Papers Tagged With: Automatic, Autopol, benchtop, electronic, laboratory, pharmacuetical, polarimeter, Polarimeter Cell, Polarimeter Measurement, polarimeters, Specific Rotation

Measuring Alcohol Concentration – Alcohol Proof Testing

DDM2911

Measuring Alcohol Concentration for Alcohol Proof by measuring the Density of Alcohol Alcohol Concentration Determination Introduction – Pycnometers, hydrometers, and digital density meters are officially recognized methods for the determination / measuring alcohol proof (ethanol) concentration for quality control and to insure proper product labeling for declaration of alcohol proof testing for the payment of […]

Filed Under: White Papers Tagged With: % Proof, alcohol, Alcohol Density, Alcohol Proof Measurement, AOAC, calibration, density, Density Meter, density-meters, IUPAC, laboratory, OIML, proof, Pycnometer, Rudolph Research, TTB

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