Absorbance spectrum

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Absorbance spectrum

Description

When light enters a sample, the amount of light that it absorbs is dependent upon the wavelength of the incident light. The absorbance spectrum is the curve derived by plotting the measured absorbance against the wavelength of the light emerging from the sample over a given wavelength range. An absorbance spectrum may be characterised by peaks and troughs (absorbance maxima and minima) that can be used to identify, and sometimes quantify, different absorbing substances present in a sample.



MitoPedia methods: Spectrophotometry 




Contributed by Harrison DK, 2012-03-26