Highly sensitive detection of mercury (II) in aqueous media by tetraphenylporphyrin with a metal ion receptor
Highly sensitive detection of mercury (II) in aqueous media by tetraphenylporphyrin with a metal ion receptor
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DOI：
10.1080/10610278.2014.882512
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发表时间：
2014-09
影响因子：
3.3
通讯作者：
Qianni Guo;Qingbin Zeng;Xiaoxiao Zhang;Xintai Zhou
中科院分区：
文献类型：
--
作者：
Qianni Guo;Qingbin Zeng;Xiaoxiao Zhang;Xintai Zhou
我们提供了一种高灵敏度和选择性的分析方法，在室温下使用一种新型的β功能化的基于卟啉的化学传感器5来检测水溶液中的汞。用紫外-可见光谱和核磁共振氢谱研究了化学传感器5与阳离子的结合性能。结果表明，化学传感器5与汞(II)离子形成1：1的化学计量比络合物。根据化学传感器5与金属离子相互作用时吸光度的变化和化学位移的变化，探讨了它们与金属离子的识别机理。对照实验表明，与其他金属离子相比，化学传感器5对汞(II)离子具有选择性响应。我们提供了一种高灵敏度和选择性的分析方法，在室温下使用一种新型的β功能化的基于卟啉的化学传感器5来检测水溶液中的汞。根据化学传感器5与金属离子相互作用时吸光度的变化和化学位移的变化，探讨了它们与金属离子的识别机理。对照实验表明，与其他金属离子相比，化学传感器5对汞(II)离子具有选择性响应。
We provide a highly sensitive and selective assay to detect Hg2+ in aqueous solutions using a novel β-functionalised porphyrin-based chemosensor 5 at room temperature. The binding properties of the chemosensor 5 for cations were examined by UV–vis spectroscopy and 1H NMR. The results indicate that a 1:1 stoichiometric complex is formed between chemosensor 5 and mercury (II) ion. The recognition mechanism between chemosensor 5 and metal ion was discussed based on their absorbance changes and the chemical shift changes when they interact with each other. Control experiments revealed that chemosensor 5 has a selective response to mercury (II) ion compared with other metal ions. We provide a highly sensitive and selective assay to detect Hg2+ in aqueous solutions using a novel β-functionalised porphyrin-based chemosensor 5 at room temperature. The recognition mechanism between chemosensor 5 and metal ion was discussed based on their absorbance changes and the chemical shift changes when they interact with each other. Control experiments revealed that chemosensor 5 has a selective response to mercury (II) ion compared with other metal ions.