analytical selectivity 

Synonym: selectivity
https://doi.org/10.1351/goldbook.08055
Selectivity of a measuring system in analytical chemistry.
Note:
Selectivity should be qualified by "analytical" if there is potential confusion with selectivity in catalysis or in organic reaction mechanisms.
Source:
PAC, 2021, 93, 997. (Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)) on page 1019 [Terms] [Paper]