Analyze the concentration of your solutions precisely using refractometry
Refractometry is ideal for quality control and monitoring manufacturing processes.
How does refractometry work?
Refractometry is based on the measurement of the refractive index of a material, which varies depending on its composition and the wavelength of the light used. Its principle is based on the deflection of light when it passes through a transparent medium .
The key steps of a refractometry analysis:
- Sample preparation – The sample, liquid or solid, is placed on the prism of the refractometer.
- Light emission – A light source passes through the sample, changing the angle of refraction depending on the concentration of the solute.
- Detection and calculation – The optical sensor measures the critical angle of refraction and converts it into the refractive index.
- Interpretation of results – The refractive index is compared to reference values to determine the concentration or purity of the sample.
This method is easy to use and offers immediate results, making it essential for routine analyses and industrial quality control.
Technical characteristics of refractometry
Refractometry can be adapted to many analytical needs. Its characteristics vary depending on the equipment and applications.
- Measuring range : Refractive index generally between 1.3000 and 1.7000.
- Accuracy : Up to ± 0.0001 on the refractive index depending on the type of device.
- Light source : LED, sodium (589 nm) or white light for specific applications.
- Thermal Compensation : Some refractometers incorporate temperature control to limit variations due to environmental conditions.
- Types of devices : Manual, digital or online refractometers, depending on the level of precision and automation desired.
These characteristics make refractometry suitable for production environments requiring speed and reliability.
For which matrices is tensiometry suitable?
Tensiometry is applicable to a wide range of liquid samples and interfaces
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For which matrices is refractometry suitable?
Refractometry used in many industries to ensure product quality and compliance with standards.
In these sectors, refractometry helps to optimize manufacturing processes and guarantee consistent quality of finished products.
Léa Géréec
Technical and scientific advisor
