accurate mass

https://doi.org/10.1351/goldbook.12326
Experimentally determined mass of an ion of known charge.
Notes:
  1. Can be used to determine elemental composition to within limits defined by both the accuracy and precision of the measurement.
  2. Accurate mass and exact mass are not synonymous. Accurate mass refers to a measured mass, and exact mass refers to a calculated mass.
See also: exact mass
Source:
PAC, 2013, 85, 1515. (Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)) on page 1519 [Terms] [Paper]
Citation: 'accurate mass' 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.12326 RIS BibTex EndNote
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