Visual and reversible detection of cyanide ions in protic solvents by a novel colorimetric receptor

被引：45

作者：

Nie, Hong-mei ^{[1
]}

Gong, Cheng-bin ^{[1
]}

Tang, Qian ^{[1
]}

Ma, Xue-bing ^{[1
]}

Chow, Cheuk-fai ^{[2
]}

机构：

[1] Southwest Univ, Coll Chem & Chem Engn, Key Lab Appl Chem Chongqing Municipal, Chongqing 400715, Peoples R China

[2] Hong Kong Inst Educ, Dept Sci & Environm Studies, Hong Kong, Hong Kong, Peoples R China

来源：

DYES AND PIGMENTS | 2014年 / 106卷

基金：

中国国家自然科学基金;

关键词：

Anion recognition; CN; Colorimetric chemodosimeter; 1-Ally1-4-[2-(4-hydroxyphenyl)ethenyl)]-quinolinium bromide; Environmental monitoring; UV-Vis; ATOMIC-ABSORPTION-SPECTROMETRY; AQUEOUS-SOLUTION; ANION-BINDING; FLUORESCENT SENSOR; CHEMOSENSOR; RECOGNITION; CU2+; WATER; LUMINESCENT; COMPLEX;

D O I：

10.1016/j.dyepig.2014.02.020

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A novel colorimetric chemodosimeter for cyanide (CN-) and 1-allyl-4-[2-(4-hydroxyphenyfletheny1)]-quinolinium bromide (AHPEQB) was designed and synthesized by condensation and terminal N alkyl reaction. AHPEQB exhibited highly selective and sensitive recognition properties toward CN- over other competing anions in ethanol, a protic solvent, with a 1:1 binding stoichiometry and a detection limit of 1.7 Chi 10(-6) mol L-1. AHPEQB also displayed rapid colorimetric response that could be readily observed by the naked eye and good reversibility. The sensing mechanism of the proposed chemodosimeter was studied by UV-Vis, H-1 NMR titration, and comparison 1-ally1-4-[2-(4-acetoxyphenyfletheny1)]-quinolinium bromide (AAPEQB). The calorimetric chemodosimeter showed high accuracy in determining the concentration of CN- in real water samples. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：74 / 80

页数：7

共 44 条

[1] A selective modified carbon paste electrode for determination of cyanide using tetra-3,4-pyridinoporphyrazinatocobalt(II) [J].