Ultraviolet
and visible (UV-Vis) absorption spectroscopy is the measurement of the
attenuation of a beam of light after it passes through a sample or after
reflection from a sample surface. Absorption measurements can be at a
single wavelength or over an extended spectral range.
Ultraviolet and visible spectrometers have been in general use for the last 35 years and over this period have become the one of the most important analytical instruments in the modern day laboratory. UV-Visible spectrometry is a simple, versatile, fast and cost-effective techniques that is used to to characterise the absorption, transmission, and reflectivity of a variety of environmentally important substances.
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