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- W2460521598 abstract "Abstract Two novel chemosensors were designed and synthesized, which could detect Fe 3+ and Hg 2+ with high sensitivity. By controlling the molecular ratio of hydrazine hydrate to BODIPY derivatives ( OB2 ), these two different sensors were obtained. The one contains two BODIPY units in each molecule ( OS21 ), the other contains one BODIPY unit in each molecule ( OS11 ). The structures of OS21 and OS11 were studied by 1 H‐NMR, Fourier transform infrared spectra (FTIR), and mass spectrometry (MS). The measurements show that OS11 was stable in pH range of 3.65‐11.09, while OS21 was stable in pH range of 3.16‐11.88. Upon the addition of Fe 3+ and Hg 2+ ions, fluorescence of OS11 and OS21 was quenched notably. Besides, OS21 was more sensitive to both Fe 3+ and Hg 2+ than OS11 . And the color of OS11 and OS21 were also changed dramatically with the contacting of Fe 3+ and Hg 2+ . Job's plot indicated that the molar binding ratio of OS11 to Fe 3+ was 1:2, to Hg 2+ was 1:1. The molar binding ratio of OS21 to Fe 3+ was 1:3, to Hg 2+ was 1:1. Also, it is found that the sensor could detect Fe 3+ and Hg 2+ in 0.5 μM concentration. Furthermore, the OS21 shows a fluorescence signal magnification effect as expected comparing with OS11 . Moreover, the binding sites in the sensors for Fe 3+ and Hg 2+ ions were investigated as well." @default.
- W2460521598 created "2016-07-22" @default.
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- W2460521598 date "2016-06-16" @default.
- W2460521598 modified "2023-10-12" @default.
- W2460521598 title "Novel Fluorescence Signal Magnified Chemosensors for Detection of Fe<sup>3+</sup> and Hg<sup>2+</sup> Ions" @default.
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- W2460521598 doi "https://doi.org/10.1002/slct.201600332" @default.
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