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Thermo Fisher Scientific

TN 9581 - Building a Better Search by Combining Raman and IR Spectroscopy


For many laboratories, infrared and Raman spectroscopies can be used as complimentary techniques because each looks at different aspects of a given sample. While IR is sensitive to functional groups and to highly polar bonds (such as O-H stretches), Raman is more sensitive to backbone structures and symmetric bonds (such as C=C). Using both measurements on a sample gives the scientist twice as much information on the vibrational structure of the sample than could be attained using either technique alone.