A Turn-On Fluorescence Chemosensor for Cyanide in Aqueous Media Based on a Nucleophilic Addition Reaction

We synthesized a new cyanide （CN-） chemosensor CX based on a nucleophilic addition reaction prompted by cyanide ion, which could be used for highly selective and sensitive fluorescence turn-on detection of cyanide in aqueous media. The CX showed selective fluorescence recognition for CN-, the miscel...

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Bibliographic Details
Published in:Chinese journal of chemistry 2017-07, Vol.35 (7), p.1165-1169
Main Authors: Chen, Jie, Li, Wenting, Li, Qiao, Lin, Qi, Yao, Hong, Zhang, Youming, Wei, Taibao
Format: Article
Language:English
Subjects:
Anions
Chemical synthesis
chemosensor
Cherries
Chlorides
cyanide
Cyanides
Fluorescence
fluorescent
Interference
Seeds
seeds of cherries
Selective media
test kits
亲核加成反应
传感器
检测试剂盒
氰化物
水溶液
荧光探针
高灵敏度
高选择性
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Summary:We synthesized a new cyanide （CN-） chemosensor CX based on a nucleophilic addition reaction prompted by cyanide ion, which could be used for highly selective and sensitive fluorescence turn-on detection of cyanide in aqueous media. The CX showed selective fluorescence recognition for CN-, the miscellaneous competitive anions （F-, Cl-, Br-, I-, AcO-, H2PO4, HSO4, ClO4, S2-, PO4^3-, CO3^2- and SCN- ） did not lead to any significant interference. The detection limit of the sensor towards CN is 1.15 × 10^-7 mol.L- 1. The sensor has been successfully applied to estimate the cyanide ion in seeds of cherries. Test strips based on CX were fabricated, which could be used as a convenient and efficient CN test kit to detect CN in aqueous solution for ＂in-the-field＂ measurement.
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.201600811