Electrochemical behavior and determination of guanosine-5′-monophosphate on a ionic liquid modified carbon electrode

被引：9
|
作者：
Shi, Fan [1 ]
Wang, Xiuzhen [2 ]
Wang, Wencheng [1 ]
Sun, Wei [1 ]
机构：
[1] Hainan Normal Univ Haikou, Coll Chem & Chem Engn, Key Lab Trop Med Plant Chem, Minist Educ, Haikou 571158, Peoples R China
[2] Qingdao Univ Sci & Technol Qingdao, Coll Chem & Mol Engn, Qingdao 266042, Peoples R China
来源：
JOURNAL OF ANALYTICAL CHEMISTRY | 2015年 / 70卷 / 02期
关键词：
carbon ionic liquid electrode; guanosine-5 '-monophosphate; cyclic voltammetry; differential pulse voltammetry; 1-butyl-3-methylimidazolium dihydrogen phosphate; ADMINISTERED GUANOSINE; GLUTAMATE UPTAKE; NUCLEOTIDES; ACTIVATION; ADSORPTION; DOPAMINE; SEIZURES; ACID;
D O I：
10.1134/S1061934815020057
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A carbon ionic liquid electrode (CILE) was constructed by using ionic liquid 1-butyl-3-meth-ylimidazolium dihydrogen phosphate, (BMIM)H (2) PO (4), as modifier and further employed as a novel working electrode for the determination of guanosine-5'-monophosphate (GMP). The study of electrochemical behavior of GMP on the CILE showed a single well-defined irreversible oxidation peak on the cyclic voltammogram. Under the selected conditions the oxidation peak current was proportional to GMP concentration in the range from 5.0 to 1000 mu M with the limit of detection of 1.3 mu M (3 sigma) by differential pulse voltammetry. The proposed method showed good selectivity to the GMP detection without the interferences of coexisting substances.
引用
收藏
页码：186 / 192
页数：7
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