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IR Frequency Region: Fingerprint Region

IR Frequency Region: Fingerprint Region

IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the...

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QT/RR fingerprint

¹National Heart and Lung Institute, Imperial College, London, United Kingdom, and Department of Internal Medicine and Cardiology, Masaryk University Medical School, Brno, Czech Republic.

|April 29, 2026

Summary

No abstract available in PubMed .

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