UV/VIS Spectrophotometry

Information obtained

  • Time dependent change in solution turbidity during mineral precipitation and dissolution reactions
  • Colourimetry to determine concentration of dissolved species, e.g., monomeric silica, phosphate
  • Detection of organic compounds

Principle

Light is passed through a solution placed within a plastic or quartz cuvette to determine reflection or transmission properties as a function of wavelength.

Special features

  • The solution in the cuvette can be stirred throughout the measurement.
  • Simple and small systems, that can be placed inside incubators to control temperature, can be monitored
  • Measurements can be taken as a function of time and wavelength (190 – 650 nm)