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首页> 外文期刊>RSC Advances >Rhodamine 6G hydrazone with coumarin unit: a novel single-molecule multianalyte (Cu2+ and Hg2+) sensor at different pH value
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Rhodamine 6G hydrazone with coumarin unit: a novel single-molecule multianalyte (Cu2+ and Hg2+) sensor at different pH value

机译：罗丹明6G与香豆素单元：新型单分子多分析物（Cu 2 + 和Hg 2 + ）传感器在不同pH值下

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A rhodamine derivative was synthesised via the hydrazone formation of rhodamine 6G hydrazide with 7-diethylamino-3-(1-hydroxy-3-oxobut-1-enyl)-2H-chromen-2-one. As a colourimetric and ratiometric fluorescent probe, the derivative exhibited high selectivity towards Cu2+ in neutral aqueous media. Moreover, the probe sensed Hg2+ with fluorescence enhancement at pH 10. The binding process was confirmed via UV-vis absorption, fluorescence measurements, 1H NMR, mass spectroscopy and density functional theory calculation. To validate the applicability of the probe, the probe was used to detect Cu2+ and Hg2+ ions in actual water samples. The application of the fluorescent sensor in monitoring intracellular Cu2+ in Hela cells has also been demonstrated.
机译：罗丹明衍生物的合成是通过罗丹明6G酰肼与7-二乙基氨基-3-（1-羟基-3-氧代丁-1-烯基）-2 H 的formation形成而合成的-chromen-2-one。作为比色和比例荧光探针，该衍生物在中性水性介质中对Cu 2 + 具有较高的选择性。此外，该探针在pH 10时检测到Hg 2 + 具有荧光增强作用。通过 紫外可见吸收，荧光测量， 1 核磁共振，质谱和密度泛函理论计算。为了验证该探针的适用性，该探针用于检测Cu 2 + 和Hg 2 + 离子在实际的水样中。还证明了荧光传感器在监测Hela细胞胞内Cu 2 + 中的应用。

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