UV-visible Spectroscopy Menu
A simple introduction to the electromagnetic spectrum, and the place of ultra-violet and visible light in it.
Bonding theory for UV-visible absorption spectra
An introduction to two essential bits of bonding theory (anti-bonding orbitals and conjugated bonds) that you need in order to understand the absorption of light by organic compounds. You won't make full sense of the next page below without reading this first.
The Beer-Lambert Law
A brief look at the Beer-Lambert Law and an explanation of the terms absorbance and molar absorptivity (molar absorption coefficient).
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