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Digital Refractometry and Concentration Measurement Devices

MSE Supplies offers a range of digital refractometers designed to meet the specific needs of scientific research and industrial applications. Our selection includes portable and benchtop models that provide precise measurements across various temperature and concentration ranges. Request a quote for more information.

What are Digital Refractometry and Concentration Measurement Devices?

Digital refractometers are precision instruments used to measure the refractive index of substances. This measurement helps determine the concentration of solutions, such as glycol mixtures, soybean milk, and saline solutions. These devices are essential in laboratories and industries where accurate concentration measurements are required, including chemical engineering and life sciences.

Applications of Digital Refractometry and Concentration Measurement Devices

These devices are used in a variety of scientific and industrial applications. They play a critical role in quality control within the food and beverage industry by accurately measuring sugar content (Brix) and salinity. In chemical engineering, they assist in the formulation of precise solutions and mixtures. Additionally, they are used in pharmaceuticals to ensure the correct concentration of active ingredients and in environmental monitoring for water quality assessment.

For quick field or bench checks of sugar and solids content, see the MSE PRO 0-28% Portable Refractometer.

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Frequently Asked Questions

Should I choose a portable or a benchtop refractometer?

Portable refractometers, such as the 0 to 20% portable refractometer, suit quick checks at the bench, in the field or on a process line. Benchtop units, such as the ABBE digital refractometer and the automatic digital refractometer, measure refractive index on the bench and suit QC and method work. Compare their temperature ranges on each product page.

Should I choose an analog or a digital refractometer?

Analog models, such as the Kern ORA 1GG, need no power and are read through an eyepiece scale. Digital models, such as the Kern ORM 1NA, show the result on a display, which removes reading differences between users and makes logging easier. Choose digital when several people share the instrument or results go into records.

Which scale do I need?

Choose a model scaled for your sample when one exists. Dedicated scales include methanol 0 to 60% w/w, glycol freezing point, serum protein 0 to 14 g/dl and salinity 0 to 28% with Brix 0 to 32%. For general concentration work, pick a range that brackets your expected readings, such as 0 to 5%, 0 to 18% or 58 to 92%.

What is the difference between the w/w and v/v alcohol models?

The alcohol 0 to 60% w/w model reports alcohol content by mass. The alcohol 0 to 60% v/v model reports it by volume. Choose the unit your method, specification or customer documentation uses, since the two scales give different numbers for the same sample.

How do I order several units or a scale that is not listed?

For several units across lines, sites or teaching labs, use the bulk order request form. If you need a scale or range that is not listed, describe your sample and expected range in the quote request form.