Refractometers

• How to Choose a Refractometer
• J357 Refractometer
• J257 Refractometer
• J157 Refractometer
• J157-633 Refractometer
• J57HA Refractometer
• J57WR Refractometer
• J57TPN Refractometer
• Refractometer Accessories
• Refractometer Calibration

Flavor, Fragrance, and Cosmetics

Perfumes Skin cleansers Lotions

Lemon, lime, orange Palm Cremes

Waxes Natural oils Sandalwood

Feature Highlight

Automation Flexibility

• Rudolph’s AutoSampler can be loaded with up to 240 samples
• Combine Refractive Index measurements with a polarimeter, density meter, and colorimeter for simultaneous measurements of:
  • Density/Specific Gravity
  • Optical Rotation/Specific Rotation
  • Color
  • Refractive Index
• Up to three different rinse solvents available for use; fully programmable
• Emergency samples measured at any time without stopping the AutoSampler or moving sample vials
• Data can be saved in Excel or PDF formats for integration into the laboratory LIMS or SAP system

Model	Specification	Features and Benefits
	Measurement Range: 1.26 - 1.70 RI; 0 - 95% Brix Accuracy: 0.0001 RI; 0.1 Brix Electronic Temperature Control: Fixed temperature selection: 20°C and 25°C	Many aromatic substances such as Cinnamic/Aldehyde have refractive indices above 1.60 RI. For this reason, most flavor/fragrance labs choose a wide RI range refractometer like the J57WR.
	Measurement Range: 1.26 - 1.70 RI; 0 - 95% Brix Accuracy: 0.00004 RI, 0.03 Brix Electronic Temperature Control: Fixed temperature selection: 20°C and 25°C	Excellent model for the flavor and fragrance industries. Designed to be used with automation. Not suitable for waxes or VERY high viscosity samples. Seen above in combination with optical rotation, density/SG and color.
	Measurement Range: 1.26 - 1.70 RI; 0 - 95% Brix Accuracy: 0.0001 RI; 0.1 Brix Electronic Temperature Control: Flexible temperature selection between 15°C - 70°C	This is our most popular stand alone model for the flavor/fragrance industry. Its wide RI range 1.2 - 1.7 measures all known products. Its non-contact sample cover improves performance for evaporative samples. Presser can be upgraded to allow automation in the future.
	Measurement Range: 1.26 - 1.70 RI; 0 - 95% Brix Accuracy: 0.00004 RI; 0.03 Brix Electronic Temperature Control: Flexible temperature selection between 15°C - 100°C	More accuracy and features generally needed by the industry. This model is sometimes chosen when the customer sells most of their product to the pharmaceutical industry and wants 21CFR Part 11 compliance.