When a molecule absorbs infrared radiation, its chemical bonds vibrate. An example of an IR Spectrum graph for Glycine. The Electromagnetic spectrum showing the wavenumber of several different types of light. The main goal of IR spectroscopic analysis is to determine the chemical functional groups in the sample. Simply, it is the absorption measurement of different IR frequencies by a sample positioned in the path of an IR beam. radar), infrared radiation, visible light, ultraviolet radiation, X-rays. Simple reference tables for the various groups can help and full spectra can be located both on our product pages and on NIST. Phosphorus compounds containing Me0 (Appendix-Table XI) have, in general, two principal bands and several lesser bands in region A. View IR Spectrum Table
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