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A ternary association complex [MIn+1]-[MB]+, which were formed by metals (Mn+), iodine anion (I-) and basic dye methylene blue (C16H18ClN3S-3H2O, MB), was applied in the preconcentration of trace heavy methylene blue (Ag, Cu, Cd, Pb) in complicated water samples, such as high salty solution, by gas flotation. The ternary association complexes was floated and absorbed into 5 mL of toluene, and the...
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