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You are here: Home / Archives for White Papers

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

Alcohol Density – Alcoholic beverage Sample Preparation

Wine Glass

Measuring Alcohol Density with a Density Meter requires specific sample preparation procedures for accurate results. Procedures for sample preparation for measuring alcohol density with a Rudolph Research DDM2911 Density Meter Application Report Alcoholic Beverage Sample preparation: In general, there are two basic types of alcoholic beverage classifications, each with a different procedure required prior to […]

Filed Under: White Papers Tagged With: alcohol, Alcohol Density, alcohol proof, benchtop, Brix, calibration, concentration, density, Density Meter, digital, electronic, measure, sample

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

Refractometer Temperature Correction Vs Control

Refractometer Temperature Correction & Control Peter Marriott – Refractometer Product Manager Rudolph Research Analytical Also see video: Refractometer, Temperature Correction & Control with a Rudolph J457 We are going to look at the effects of changing temperature on refractive index measurement and if Temperature Correction can compensate for temperature variances or if actual temperature control […]

Filed Under: White Papers Tagged With: ABBE, Automatic, benchtop, beverage, Brix, chemical, cosmetics, digital, electronic, essential oils, flavor, food, industry, laboratory, oil, petro chemicals, petroleum, pharmacuetical, R/I, refractive index, refractometer, refractometers, sugar, Temperature Correction

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      • DENSITY METER – PORTABLE DDM29
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