Comparison of Potassium Iodide Quenching of 3-Aminophthalate Fluorescence and Luminol Chemiluminescence in Aqueous Solution
It has recently been suggested that the fluorescence of 3-aminophthalate in aqueous or dimethylsulfoxide (DMSO) solution can be described by a four level scheme1. The ground state species upon excitation undergoes considerable hydrogen bonding re-arrangements and in DMSO even complete intramolecular proton transfer occurs. In order to explain the differences in spectral and quantum yield behavior between the fluorescence of 3-aminophthalate and the chemiluminescence of luminol 1–4, we have suggested that the chemiluminescence process populates the lower of the two excited levels primarily1.
KeywordsExcited Level Potassium Iodide Sodium Iodide Excited Species Chemi Luminescence
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