Refractive Index Tester

A refractometer determines the optical properties of a substance by measuring the refraction angle of light as it passes through a sample. It is used to detect the concentration and purity of liquids or transparent solids, and is employed in the chemical, food, and pharmaceutical industries for quality control and composition analysis.
Selection
When selecting, consider that the measurement range covers the refractive index of common samples, the accuracy meets the testing standards, and it includes temperature compensation functionality. The operation interface should be clear, calibration should be straightforward, and accessories such as flow cells or solid sample stages should be chosen based on the sample form. Pay attention to the instrument's maintenance requirements and measurement repeatability.

Standards