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Author Topic: interpretation of TIR (FTIR) reflectance spectra peaks  (Read 16 times)

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When you look at spectra from TIR instruments like the Nicolet FTIR, for example, published spectra of rocks and minerals, the reflectance spectra have high value peaks at the wavelengths (or wave numbers, if you prefer), where the subject has strong vibrational absorptions.

If the subject is absorbing strongly at that wavelength, why is there a reflectance peak?

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