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Fingerprint region

The 1500 to 400 cm⁻¹ stretch of an infrared spectrum where bending and combination bands produce a pattern unique to a given compound. Library matching is dominated by this region rather than by the group-frequency region above 1500 cm⁻¹.

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Related terms

ATR (attenuated total reflectance)ATR-FTIRBeer-Lambert lawElectron impact (EI) ionisationFTIRGroup frequencyInternal standard (IS)KBr pelletLimit of detection (LOD) and quantitation (LOQ)MRM (multiple reaction monitoring)Wavenumber

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