Simple and rapid mercury ion selective electrode based on 1-undecanethiol assembled Au substrate and its recognition mechanism

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• 作者：Xian-Qing Li^a ; ¹ ; Hai-Qing Liang^a ; ¹ ; Zhong Cao^a ; ^{zhongcao2004@163.com} ; Qing Xiao^a ; Zhong-Liang Xiao^a ; ^b ; ^{xiaozhongliang@163.com} ; Liu-Bin Song^a ; Dan Chen^c ; Fu-Liang Wang^b
• 关键词：Mercury ion ; 1-Undecanethiol ; Self-assembled monolayer ; Recognition mechanism ; Density functional theory
• 刊名：Materials Science and Engineering: C
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：72
• 期：Complete
• 页码：26-33
• 全文大小：1144 K
• 卷排序：72

文摘

A simple and rapid mercury ion selective electrode has been well constructed. The Au/1-UDT electrode for sensing Hg2 + has a sensitivity of 28.83 ± 0.4 mV/− pC. The ISE method has a detection limit of Hg2 + down to 4.5 × 10− 9 mol L− 1. A mechanism with density functional theory for recognition of Hg2 + is developed. The quantum chemical computation demonstrates Au-Hg metallophilic interaction.