selectivity 

https://doi.org/10.1351/goldbook.S05564
  1. (qualitative): The extent to which other substances interfere with the determination of a substance according to a given procedure.
  2. (quantitative): A term used in conjunction with another substantive (e.g. constant, coefficient, index, factor, number) for the quantitative characterization of interferences.
Source:
PAC, 1983, 55, 553. (Recommendations for the usage of selective, selectivity and related terms in analytical chemistry) on page 555 [Terms] [Paper]
See also:
PAC, 1990, 62, 2167. (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2174 [Terms] [Paper]
Citation: 'selectivity' 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.S05564 RIS BibTex EndNote
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Last revised: February 24, 2014