universal detector

in chromatography
https://doi.org/10.1351/goldbook.U06565
A detector which responds to every component in the column effluent except the mobile phase.
Source:
PAC, 1993, 65, 819. 'Nomenclature for chromatography (IUPAC Recommendations 1993)' on page 849 (https://doi.org/10.1351/pac199365040819)