Refractometers & Polaramiters

Refractometers Digital hand refractometers The latest technology for measuring refractive indices.The sample is illuminated by a LED light source while an optical sensor measures the percentage of reflection from the sample. With the refractive index the device calculates the concentration. With ATC. Polarimeters The purity and concentration of an optically active substances can be determined with polarimeter. An optically active substance will rotate the polarization plane of linear polarized light. The amount of rotation is dependant on the molecular composition and is proportional to the concentration of chiral molecules. Each optically active substance has his specific rotation factor as defined by Biot's law.