What is a Polarimeter?

A polarimeter is a scientific instrument used to measure the angle of rotation caused by passing polarized light through an optically active substance.

Some chemical substances are optically active, and polarized (uni-directional) light will rotate either to the left (counter-clockwise) or right (clockwise) when passed through these substances. The amount by which the light is rotated is known as the angle of rotation. The direction (clockwise or counterclockwise) and magnitude of the rotation reveals information about the sample’s chiral properties such as the relative concentration of enantiomers present in the sample

Information required to quote on a Polarimeter

  1. What is your application?
  2. Do you need an analogue or digital instrument?
  3. What is your sample volume?
  4. Do you need temperature control?
  5. Will you be working with any hazardous chemicals?

Further Reading


Brochures Polarimeter Guide