UV absorption spectroscopy is one of the best methods for determination of impurities inorganic molecules. Additional peaks can be observed due to impurities in the sample and it can be compared with that of standard raw material. By also measuring the absorbance at specific wavelength, the impurities can be detected.
UV absorption spectroscopy can characterize those types of compounds which absorbs UV radiation. Identification is done by comparing the absorption spectrum with the spectra of known compounds.
UV absorption spectroscopy is generally used for characterizing aromatic compounds and aromatic olefin