1-Ethyl-3-methylimidazolium ethylsulfate/copper(II) as catalyst for lucigenin chemiluminescence and its application to glucose detection

被引：5
作者：
Alijanpour, S. O. [1 ]
Akhoondi, R. [1 ]
Chaichi, M. J. [1 ]
机构：
[1] Univ Mazandaran, Dept Chem, Babol Sar, Iran
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2017年 / 72卷 / 01期
关键词：
1-ethyl-3-methylimidazolium ethylsulfate; lucigenin chemiluminescence; H2O2; glucose; real-world sample; GLASSY-CARBON ELECTRODE; HYDROGEN-PEROXIDE; ORIENTED SYSTEMS; IONIC LIQUIDS; BIOSENSOR; OXIDASE; ENZYME; SERUM; MEMBRANE; NAFION;
D O I：
10.1134/S1061934817010026
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The present study reports the effect of an ionic liquid (IL), 1-ethyl-3-methylimidazolium ethylsulfate ([Emim][EtSO (4)]), on the Cu2+-catalyzed lucigenin/H2O2 chemiluminescence system in the range of pH 6.5aEuro'10. At pH 8.0, the greatest enhancement on light emission is observed, related to a strong interaction between Cu2+ and the imidazolium ring at this pH. Furthermore, the formation of IL microdomains in the aqueous solution enhances in solubility of N-methylacridone, an insoluble emitter that can be very effective in lucigenin chemiluminescence (Luci-CL). The mentioned findings encouraged us to suggest a novel and simple method for the determination of glucose with the detection limit of 7 mu M at pH 8.0 based on the detection of H2O2 liberated in enzymatic reaction between glucose oxidase and glucose by the [Emim][EtSO (4)]/Cu2+-catalyzed Luci-CL system. Also, the developed method was successfully applied to the determination of glucose in real plasma and urine samples of diabetic patients and validated against colorimetric spectroscopy method.
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页码：120 / 127
页数：8
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