Nephelometry vs. Turbidimetry — What's the Difference?

An apparatus that is used to measure the size and concentration of particles in a liquid by analysis of light scattered by the liquid.

Turbidimetry (the name being derived from turbidity) is the process of measuring the loss of intensity of transmitted light due to the scattering effect of particles suspended in it. Light is passed through a filter creating a light of known wavelength which is then passed through a cuvette containing a solution.

(analytical chemistry) The measurement of the concentration of a solution, suspension or dispersion based upon its light-scattering properties.

An instrument for measuring the loss in intensity of a light beam through a solution that contains suspended particulate matter.

(immunology) A technique used to determine the levels of antibodies or antigens in a suspension, based on its light-scattering properties.

The measurement of turbidity by means of a turbidimeter