A highly sensitive and selective “turn-on” fluorescence sensor for rapid detection of cyanide ions in aqueous solution
A highly sensitive and selective “turn-on” fluorescence sensor for rapid detection of cyanide ions in aqueous solution
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DOI：
10.1080/10610278.2015.1125899
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发表时间：
2016-01
影响因子：
3.3
通讯作者：
T. Wei;Guo-Tao Yan;Hui Li;Y. Zhu;B. Shi;Qi Lin;Hong Yao;You‐Ming Zhang
中科院分区：
文献类型：
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作者：
T. Wei;Guo-Tao Yan;Hui Li;Y. Zhu;B. Shi;Qi Lin;Hong Yao;You‐Ming Zhang
摘要合成了一种简单易合成的具有水杨醛缩肼功能的比色荧光氰化物探针，并对其进行了表征。与水溶液中的其他竞争阴离子(F-−、Cl-−、Br-−、I-−、Aco-−、和SCn-−)相比，该探针对氰化物具有快速、高选择性和灵敏的识别作用。此外，荧光法对氰化物的检出限为1.96×10−8M，远低于世界卫生组织规定的饮用水中氰化物的最高限值(1.9μM)。此外，在二甲基亚砜/水(6：4，v/v)中加入CN-−后，传感器的颜色由无色变为黄色，荧光增强。因此，该探针可以作为一种实用的检测水样中剧毒和致命氰离子的系统。提出了LY对DMSO-H2O(6：4，v/v)中氰化物的传感机理。
Abstract A simple and easily synthesised colorimetric and fluorescent cyanide probe bearing salicylaldehyde hydrazone functionality has been synthesised and characterised. This probe displays rapid response, highly selective and sensitive recognition for cyanide over other competitive anions (F−, Cl−, Br−, I−, AcO−, , , , and SCN−) in the aqueous solution. Furthermore, the detection limit of the fluorescent assay for cyanide is 1.96 × 10−8 M, which is much lower than the maximum value of cyanide (1.9 μM) permitted by the World Health Organization in drinking water. In addition, the sensor exhibited both a colour change from colourless to yellow and fluorescence enhancement upon addition to CN− in DMSO/H2O (6:4,v/v). Thus, the present probe should be applicable as a practical system for the detection of highly toxic and deadly cyanide ion in aqueous samples. The proposed sensing mechanism of LY for cyanide in DMSO-H2O (6:4, v/v).