Refractometer, also known as refractometer, is an instrument that uses light to test the concentration of liquids, and is used to measure refractive index, birefringence, and optical properties. Refractometer can be divided into hand-held refractometer, sugar refractometer, honey refractometer, gem refractometer, digital display refractometer, automatic refractometer and online refractometer.
1. Measure the refractive index
Refractive index is a physical constant of matter, and each substance has its own characteristic refractive index. Refractometers can be used to measure pharmaceuticals, flavors and fragrances, glass, plastics and other items.
2. Measuring sugar content
A refractometer can be used to measure the Brix value of sugar-rich samples, such as juice, syrup, jam, honey, etc. The measured value is correlated with the sugar concentration of the measured sample, and the Brix scale actually represents the concentration of an aqueous solution of sucrose. The conversion value between the Brix value and the refractive index is data using ICUMSA (International Association of Methods of Sugar Analysis).
3. Measure the concentration of food
Soy sauce and other sauces, seasoning liquids and other liquid foods contain sugar, salt and other substances. The refractometer measurements are proportional to the soluble solids content in these solutions, so that the Brix value represents the total soluble solids content in the solution.
4. Measure the concentration of the aqueous solution
The refractometer can be used to determine the concentration of aqueous solutions such as oil-based solutions, pharmaceuticals and heavy chemical products such as engine oil, detergents, glycol, cesium chloride, sodium hydroxide and other substances. There is a proportional relationship between the Brix value and the concentration of each solution. The solution concentration can be determined by the Brix value measured by the refractometer and the established conversion table. The Brix value is the basic scale to determine the soluble solid content in the solution.