An effect accompanying concentration @Q05007@ in some cases, namely the formation of a new @M03989@ species which is capable of emission (@E02242@- and @E02246@-@L03641@).
Source: PAC, 1984, 56, 231. (Nomenclature, symbols, units and their usage in spectrochemical analysis-Part VI: molecular luminescence spectroscopy) on page 235 [Terms] [Paper]