Ultraviolet-Visible spectrophotometry [3]
UV-Visible spectrophotometry is one of the most frequently
employed technique in pharmaceutical analysis. It involves measuring
the amount of ultraviolet or visible radiation absorbed by a substance
in solution. Instrument which measure the ratio, or function of ratio, of
the intensity of two beams of light in the U.V-Visible region are called
Ultraviolet-Visible spectrophotometers.