absorbance matching

in spectrochemical analysis
A procedure where the concentration of a known analyte may be determined by diluting the sample with solvent until the @[email protected] matches the @[email protected] of the analyte in the reference cell. This method is particularly useful if the @[email protected] does not hold.
PAC, 1988, 60, 1449. (Nomenclature, symbols, units and their usage in spectrochemical analysis - VII. Molecular absorption spectroscopy, ultraviolet and visible (UV/VIS) (Recommendations 1988)) on page 1456 [Terms] [Paper]