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Two kinds of fluorescent sensors (S and S1) for Fe3+ bearing 1H-Imidazo [4,5-b] phenazine derivatives have been designed and synthesized. Between the two sensors, S showed excellent fluorescent specific selectivity and high sensitivity for Fe3+ in DMSO solution. The test strip based on S was fabricated, which could act as a convenient and efficient Fe3+ test kit. The recognition mechanism of the sensor...
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