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Under the conditions of 0.04molL −1 HCl–8.0 × 10 −4 molL −1 KI, there is a fluorescence peak at 540nm and a synchronous fluorescence peak at 540nm for rhodamine 6G (RhG). When there is IO 3− , it reacts with exceed I − to form I 3− . And I 3− and RhG combine into ion association particles. The particles exhibit three resonance...