Differential Refractive Index Detector

The differential refractometer measures concentration based on the difference in refractive index between a solution and a reference liquid. Light passes through the sample cell, causing deflection, and the detector receives the signal to calculate the difference in refractive index. It is used for determining solid content in coatings and inks, analyzing the concentration of plastic additives, and monitoring pulp concentration in the papermaking process.
Selection
When selecting, consider that the measurement range covers the refractive index interval of the sample, and the temperature control accuracy matches the thermal sensitivity of the material. The automatic sampling function is suitable for batch testing, and the protective design accommodates corrosive solvents. Calibration accessories ensure long-term stability, and data interfaces are compatible with the laboratory recording system.

Terms

Standards

Instruments

Measurement accuracy of refractive index is +/- 0.0002nD, Measurement range is 3000-1.7000 nD, base is made of stainless steel, prism is made of hard Glass.

$ 420.00

Measurement refractive index range 3000-1.7000, accuracy of +/- 0.0002, can be connected to Thermostat determination of 0 ℃ -70 ℃ refractive index, support sugar concentration 0-95% measurement, resolution 0.0005, suitable for Optical Property Analysis of various substances.

$ 428.00

Using 6-bit OLED LCD display, refractive index Measurement range 1.30000-1.72000nD, sugar content range 0-95% Brix, built-in lithium battery supports 72 hours of continuous work, compact and easy to carry.

$ 1364.00

Using refraction principle design, 3 seconds fast display results, automatic temperature compensation function, use more than 10000 times, sugar Measurement range 0~ 35%, refractive index Measurement range 1.3330~ 1.3900.

$ 251.00

Equipped with high-performance linear CCD and sapphire prism, refractive index Measurement range 1.3000~ 1.7000nD, accuracy +/- 0.0002, support transparent to viscous liquid rapid detection.

$ 3688.00

Using refraction principle design, compact and portable can be put into the pocket, LCD large screen 3 seconds fast display, automatic temperature compensation, use of more than 10000 times, sugar Measurement range 0~ 85%, refractive index range 1.3300~ 1.5100.

$ 251.00

It can measure refractive index 1.3000~ 1.7000nD and sugar content 0~ 100% Brix, with accuracy of +/- 0.0002nD and +/- 0.1% Brix, respectively, and supports temperature correction and direct data printout.

$ 1282.00

Measurement refractive index range 1.3-1 nD, sugar measurement 0-95%, visual aiming Optical inspection dial reading, temperature digital display, stainless steel base and hard Glass prism good durability.

$ 398.00

Measurable refractive index nD range 3000-1.7000, accuracy of +/- 0.0003nD, support 0-95% sugar concentration measurement, equipped with 2x and 22x double magnifying glass system, suitable for transparent translucent sample analysis.

$ 453.00

Measurement range 1.3000~ 1.7000nD, accuracy +/- 0.0002nD, support 0~ 70 ° C thermostatic measurement, visual aiming Optical inspection dial reading, compact and easy to carry.

$ 356.00

Refractive index measurement technology, only 1.5 seconds to display the results, automatic temperature compensation range 10-40 ℃, sample size only 100 μL, IP65 Protection Rating for a variety of environments.

$ 567.00

Refractive index conversion technology, Measurement range 0-50% Brix, accuracy +/- 0.2% Brix, automatic temperature compensation, quick display results in only 1.5 seconds, sample size as low as 100 μL.

$ 567.00

Using high-resolution CCD Sensor and Paltier temperature control system, the measurement refractive index accuracy is +/- 0.00002, and the sugar content accuracy is +/- 0.01% Brix, which is suitable for transparent to viscous liquids to ensure stable and reliable detection.

$ 7174.00

Using stainless steel base and hard Glass prism, good abrasion resistance; Measurement range 1.3~ 1.7nD, accuracy of 0.0003nD; Thermostat can be connected to determine the refractive index at different temperatures.

$ 430.00

Adopt dual temperature control system, temperature control accuracy +/- 0.03 ℃, equipped with sapphire prism and high resolution CCD Sensor, support refractive index Measurement range 1.3000~ 1.7000nD, suitable for transparent to viscous liquid detection.

$ 4592.00

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