A naked-eye chemosensor for simultaneous detection of iron and copper ions and its copper complex for colorimetric/fluorescent sensing of cyanide

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• 作者：Gyeong Jin ParkAuthor Vitae ; Ga Rim YouAuthor Vitae ; Ye Won ChoiAuthor Vitae ; Cheal Kim ; ^{chealkim@seoultech.ac.kr" class="auth_mail" title="E-mail the corresponding author} ; ^{chealkim20@daum.net" class="auth_mail" title="E-mail the corresponding author}Author Vitae
• 关键词：Colorimetric chemosensor ; Iron ; Copper ; Cyanide ; Sequential detection
• 刊名：Sensors & Actuators: B. Chemical
• 出版年：2016
• 出版时间：28 June 2016
• 年：2016
• 卷：229
• 期：Complete
• 页码：257-271
• 全文大小：4780 K

文摘

A new prototype of multifunctional chemosensor 1 has been synthesized for Fe^2+/3+, Cu²⁺ and CN⁻ in aqueous solution. This sensor could simultaneously detect biologically important metal ions (iron and copper) through colorimetric methods over most other competitive cations. The detection limit (2.9 μM) of 1 for Cu²⁺ is lower than WHO guideline (31.5 μM) in drinking water. Interestingly, the resulting 1-Cu²⁺ complex sensed cyanide in colorimetric and fluorometric ways, showing recovery from 1-Cu²⁺ to 1, over other common interference anions. These results demonstrate a novel type of versatile chemosensor for multiple target ions using two different sensing methods, simple colorimetric and sequential detections.