Carbon Dioxide Gas Sensor Based on Ionic Liquid-Induced Electrochemiluminescence

被引：47

作者：

Chen, Lichan

Huang, Danjun

Ren, Shuyan

Chi, Yuwu ^{[1
]}

Chen, Guonan

机构：

[1] Fuzhou Univ, MOE Key Lab Anal & Detect Technol Food Safety, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Fuzhou 350108, Fujian, Peoples R China

来源：

ANALYTICAL CHEMISTRY | 2011年 / 83卷 / 17期

基金：

中国国家自然科学基金;

关键词：

DIMETHYL-SULFOXIDE; VOLTAMMETRY; ELECTROLYTE; SOLVENTS; LUMINOL; ABSENCE; AMINES; CELL;

D O I：

10.1021/ac201067u

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Electrochemiluminescence of the luminol-O-2 system in an electrolyte-free N,N-dimethylformamide (DMF)-dipropylamine (DPA) cosolution is induced by the formation of a carbamate ionic liquid (IL) from the reaction between CO2 and DPA, on the basis of which a facile ECL sensor for measuring atmospheric CO2 has been developed. This ECL sensing method shows several advantages in the detection of CO2, such as high safety, high selectivity, wide linear response range, and good sensitivity. The gas sensor was found to have a linear response range from 100 ppm to 100 v/v% and a detection limit of 80 ppm (at signal-to-noise ratio of 3). This is the first reported IL-induced ECL sensor for a gas, thus the principle of this type of sensor and the IL-induced ECL mechanism have been demonstrated in detail.

引用

页码：6862 / 6867

页数：6

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