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Colorimetric determination of Hg2+ via thiosemicarbazide-to-oxadiazole transformation of a coumarin-benzopyrylium dye
Tetrahedron Letters ( IF 1.5 ) Pub Date : 2018-03-28 , DOI: 10.1016/j.tetlet.2018.03.068
Dae Sung Lim , So Young Park , Keum Saem Hwang , Suk-Kyu Chang

A dual signaling reaction-based probe derived from a hybrid coumarin-benzopyrylium dye was developed for Hg2+ signaling. The probe exhibited selective colorimetric Hg2+ signaling via the Hg2+-induced thiosemicarbazide-oxadiazole transformation. Interference from Cu2+ ions was successfully circumvented using a citrate buffer as a masking agent. The detection limit for Hg2+ ions was found to be 1.88 × 10–7 M. Practical application to Hg2+ detection in simulated wastewater was realized using a typical smartphone as a stand-alone data capture and data processing device.



中文翻译:

通过香豆素-苯并吡啶染料的硫代氨基脲到恶二唑的比色法测定Hg 2+

开发了一种基于双信号反应的探针,该探针衍生自杂香豆素-苯并吡啶染料,用于Hg 2+信号传导。该探针通过Hg 2+诱导的硫代氨基脲-恶二唑转化表现出选择性的比色Hg 2+信号传导。使用柠檬酸盐缓冲液作为掩蔽剂成功地避免了来自Cu 2+离子的干扰。发现Hg 2+离子的检出限为1.88×10 –7M。使用典型的智能手机作为独立的数据捕获和数据处理设备,可以在模拟废水中检测Hg 2+的实际应用。

更新日期:2018-03-28
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