A turn-on Schiff-base fluorescence sensor for Mg²⁺ ion and its practical application

详细信息    查看全文

• 作者：Min-Hsiu Kao ; Ting-Yu Chen ; You-Ru Cai ; Ching-Han Hu ; Yen-Wen Liu ; Yi Jhong ; An-Tai Wu ; ^{antai@cc.ncue.edu.tw" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Quinoline ; Sensor ; Schiff-base ; Reversibility
• 刊名：Journal of Luminescence
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：169
• 期：part_PA
• 页码：156-160
• 全文大小：1309 K

文摘

A simple quinoline derivative (quinoline-base sensor) was synthesized and investigated by its sensing properties towards various metal ions in CH₃CN. Quinoline-base sensor showed a highly selective fluorescent enhancement towards Mg²⁺. The association constant of a 1:1 complex between quinoline-base sensor and Mg²⁺ was determined as 1.91×10⁷ M⁻¹. The detection limit of quinoline-base sensor for the analysis of Mg²⁺ ion was determined as 19.1 ppb; this value is below the maximum permissible level for drinking water.