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  From printed catalogues to digital spectral databases: the evolution of infrared spectral libraries

  by Ioana Maria Cortea — Published on May 14, 2026 — Reading time: 12 min Infrared spectroscopy has long been one of the most widely used analytical techniques for material identification, with IR spectra serving as unique molecular “fingerprints” that enable compounds to be identified through their characteristic absorption patterns. The foundations of infrared spectroscopy date back to the… read more