Refractometers

Refractometers were invented by Dr. Ernst Abbe, German scientist / Austrian at the beginning of the 20th century. The Abbe refractometer is the "grandfather" of all modern refractometers, thanks to its simple functioning and reliability, still has room in the laboratories.

Refractometers are optical instruments that serve to determine the percentage of soluble solids in a liquid dissolution. For this, the refractometer makes use of the principle of total refraction of light (originated by the type and concentration of dissolved substances in a liquid solution, for example, sugar), which takes place in the boundary layer between the prism and the shows.

The refractive index of the prism determines the upper limit of the measuring range, since it must always be greater than that of the sample. The refractometer is therefore the density of the liquids, the more dense is a greater liquid it will be refraction.

The functioning of refractometers are based on refraction of light, this phenomenon when light passes from one medium to another is easy to observe. The study of refraction is very beneficial, from the analysis of the properties of light to the areas of mineralogy, for chemistry, among others. This mirror compound that directs light to a metallic frame with two prisms. The light is observed by an objective that is next to a graduated scale that allows to establish its relative position with respect to prisms. The metal tube is covered by a rubber tube so that when you take the refractometer, the temperature is not altered, since this issue influences the values ​​of the liquid refractive indices. In the centerpiece there is a flap that can be opened to allow separating the two premiums and placed between them the substance that is intended to analyze. Refractometers are optical measuring devices and therefore have special maintenance.

The refractometer is an optical precision instrument that works according to the principle: as the concentration or density of a solution increases, its refractive rate changes proportionally. The refractive angle measured by the refractometer is recorded on the scale. The greater the concentration of solute in the solution, the greater the reading on the scale.

✓ YR01774 0-50% Brix
This model is designed and applied to measure the concentrated solution of grape sugar. Measuring range: 0-50% Minimum scale: 0.5

This video covers the use of a hand held refractometer which can be used to measure salinity in liquids such as seawater. Calibration and basic information on care are also covered.

Clean and carefully dry the lid and prism also before calibration. Put 1 or 2 drops of distilled water in the prism. If the light / dark limit is not at 0% (water line), adjust it with the help of the calibration screw under the rubber coverage, help with the screwdriver that comes in the box.