A technique for determining the concentration and structure of a substance by measuring the amound of electromagnetic radiation the sample absorbs at various wavelengths.

Absorption spectroscopy is a laboratory technique used to determine the structure and concentration of a sample based on the amount and wavelengths of light that it absorbs.Return to the Chemistry Glo [..]

Analysis of the energy absorbed across a spectrum of x-ray energies/wavelengths to determine the chemical structure and Electronic states of the absorbing medium.

<procedure> <investigation> This is the use of a spectrophotometer to measure the ability of particles (solutes) in a solution to absorb light through a range of specific wavelengths. Every compound absorbs light differently, so absorption spectra can be used to identify compounds, measure concentrations, and determine reaction rates. ( [..]