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White Papers

White Papers

Sulfuric Acid Measurement

Density Meter – Refractometer Instrument Combinations

Versatile Density Meter – Refractometer Instrument Combinations from Rudolph Research Analytical. Combined Density Meter –...
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Refractometer

Refractometer Uses in Industry and Selection

Refractometer Uses in Industry and Selection By Angelo DePalma, PHD Refractometer uses: Characterizes fluids based...
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Rudolph J157

Refractometer Calibration – 2 Point Method

Refractometer Calibration, 2 point method, Rudolph Research J157 – Video Transcript Refractometer Calibration resource –...
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Polarimerty Diagram

Specific Rotation Equation vs Optical Rotation

Specific Rotation Equation vs. Optical Rotation – What’s the Difference? By Angelo DePalma, PHD Polarimetry...
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Optical Rotation – Specific Rotation Measurement Procedures – Rudolph Research Polarimeter

Source Video: Polarimeter Measurement Procedures to Determine Optical Rotation / Specific Rotation Video Transcript from...
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Polarimeter Cell Cleaning Prior to Making a Measurement

Cleaning a Polarimeter Sample Cell – Video Transcript Video location: Polarimeter Sample Cell Cleaning Procedures...
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Wine Glass

Alcohol Density – Alcoholic beverage Sample Preparation

Measuring Density of Alcohol with a DDM 2911 Density Meter: Sample Preparation Procedures In general...
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DDM2911

Measure Alcohol Concentration – Alcohol Proof Testing

Measure Alcohol Concentration for Alcohol Proof by Measuring the Density of Alcohol Alcohol Concentration Determination...
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Refractometer Temperature Correction Vs Control

Refractometer Temperature Correction & Control Peter Marriott – Refractometer Product Manager Rudolph Research Analytical Also...
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Automation White Papers

  • Polarimeter Requirements for the Pharmaceutical Industry
  • UAN Fertilizer Concentration Analysis – Measure RI & Density for % Concentration
More »


Refractometer White Papers

  • DEF Testing for ISO 22241 with Refractometers and Density Meters
  • J57/J157AB Refractometer Measurement of Urea Concentration for Diesel Engine Additives
  • Automobile Industry Refractometer Options Package
  • Measurement of Concentration Dependence of Refractive Index to Confirm Gel Permeation Chromatography Parameter
  • Measurement of Concentration Dependence of Refractive Index to Enhance Gel Permeation Chromatography for Polymer Characterization
  • Refractometer Temperature Boost Option
  • Ultra Low Volume Refractometer
  • Refractometer Validation
  • UAN Fertilizer Concentration Analysis – Measure RI & Density for % Concentration
  • J157HA-BUTYRO Refractometer
More »

Filed Under: White Papers Tagged With: butyro refractometer, refractometer, white paper

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General Inquiries

Rudolph Research Analytical
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Phone: 973-584-1558
Fax: 973-584-5440
info@rudolphresearch.com
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Copyright © 2026 Rudolph Research Analytical

  • Home
  • Products
    • Density Meters
      • DENSITY METER – PORTABLE DDM29
      • Density Meter DDM 2909
      • Density Meter DDM 2910
      • Density Meter DDM 2911
      • Density Meter DDM 2911 PLUS
      • Density Meter Sample Loading Options
    • Refractometers
      • REFRACTOMETER – PORTABLE J27
      • J47
      • J57 VT
      • J157 PLUS
      • J257
      • J357
      • J457
      • Contact Lens Refractometers
    • Polarimeters
      • Autopol I
      • Autopol II
      • Autopol III
      • Autopol IV
      • Autopol V
      • Autopol V PLUS
      • Autopol VI
    • Saccharimeters
      • Autopol IZ & IIZ Saccharimeters
      • Saccharimeter Autopol 589
      • Digital Saccharimeter Autopol 880 & 880T
      • Saccharimeter Autopol 880 PLUS & 880T PLUS
      • Saccharimeter Sample Cells
      • Saccharimeter Specifications
    • Automation
      • Autoflex® R817
      • AutoFlex® R827
      • AutoFlex® R837
    • AlcoTest-RI®
      • Distillery Financing
    • VeriLinkRx Hospital Drug Diversion
    • Octapol®
      • Octapol®
      • Octapol® Red
      • Octapol® Black
    • Rudolph Standards Lab
  • Resources
    • Service + Maintenance
    • White Papers
    • Videos
    • Technical Bulletins
    • Definitions
  • Quality – Accreditations
  • Testimonials
  • Rudolph Research – General Info
    • About Us
    • Articles
    • Trade Shows
    • Press Releases
    • Service + Maintenance
    • Customers/Industries
  • Contact Us
    • Distributor Locator
    • Contact Service
    • Part Order/Quote Request
    • Request Information
    • Rudolph Brazil
    • Rudolph Germany
    • Rudolph Japan
    • Rudolph Turkey
    • Careers
    • Open Positions
  • Videos
  • Rudolph Standards Lab
  • Shop
    • Cart