A highly selective novel fluorescent probe was prepared by using surface modified ZnS:Mn nanoparticles, functionalized with morin, a flavonol. SEM investigations of the heterostructures prepared using wet chemical precipitation technique revealed a nanoflake type of morphology. HR-TEM and powder XRD analysis confirmed the crystalline planes corresponding to Wurtzite ZnS. The functionalized nanoparticles were characterized using Raman, XPS and FTIR which confirms the binding of morin to the nanoparticles via surface coordination. The prepared probe selectively interacts with Al3+ ions which has been used as an ultrasensitive analytical tool for determination of Al3+ ions. A major advantage of the proposed method is that the other metal ions closely associated with Al3+ did not interfere with the analysis. The detection limit and the quantitation limit were found to be 0.07 nM and 0.20 nM respectively with a linear dynamic range 0.20 nM-80 nM. The method was successfully applied to environmental water samples and other complex matrices.

中文翻译：

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基于黄酮醇的掺杂硫属化物纳米薄片的表面改性作为 Al 3+ 离子的超灵敏荧光探针

通过使用表面修饰的 ZnS:Mn 纳米颗粒制备了一种高选择性的新型荧光探针，并用一种​​黄酮醇 Morin 进行了功能化。使用湿化学沉淀技术制备的异质结构的 SEM 研究揭示了纳米薄片类型的形态。HR-TEM 和粉末 XRD 分析证实了对应于纤锌矿 ZnS 的晶面。使用拉曼、XPS 和 FTIR 表征功能化纳米粒子，这证实了morin 通过表面配位与纳米粒子的结合。制备的探针选择性地与 Al3+ 离子相互作用，Al3+ 离子已被用作测定 Al3+ 离子的超灵敏分析工具。该方法的一个主要优点是与 Al3+ 密切相关的其他金属离子不会干扰分析。发现检测限和定量限分别为 0.07 nM 和 0.20 nM，线性动态范围为 0.20 nM-80 nM。该方法已成功应用于环境水样和其他复杂基质。