What is spectroscopy used for in analytical?
Spectroscopy can be used qualitatively, quantitatively and for identification. Although often less obvious in modern laboratories, the spectrometry group of techniques is still the largest single most important group in analytical chemistry. The most common detectors used in techniques such as HPLC and GC will be spectrometric techniques, as well as the use of spectrometry independently for identification and qualitative analysis. The key principle in spectrometry is compounds having unique spectra produced from their energy changes in relation to the absorption or emission of radiation. Different techniques promote and detect different forms of radiation, but the basic principle remains the same.
