peak width at half height

symbol: $w_{\rm{h}}$
https://doi.org/10.1351/goldbook.09904
Peak width at \(\pu{50\%}\) of the peak height that terminates at the intersections with the peak.
Notes:
  1. The peak width at half height must never be called the "half width" because that has a completely different meaning.
  2. The peak width at half height of a Gaussian peak is about 2.355 times the standard deviation of the modelled Gaussian. See figure in peak height.
Source:
PAC, 2017, 90, 181. (Terminology of separation methods (IUPAC Recommendations 2017)) on page 195 [Terms] [Paper]
Citation: 'peak width at half height' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.09904 RIS BibTex EndNote
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