Electrochemical determination of hydroquinone using hydrophobic ionic liquid-type carbon paste electrodes

被引：0
作者：
Yiyi She
Yougen Tang
Hongtao Liu
Ping He
机构：
[1] Central South University,College of Chemistry & Chemical Engineering
[2] Southwest University of Science and Technology,School of Materials Science & Engineering
来源：
Chemistry Central Journal | / 4卷
关键词：
Glassy Carbon Electrode; Phosphate Buffer Solution; Carbon Paste Electrode; Potassium Hexacyanoferrate; Diffusion Control Mechanism;
D O I：
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学科分类号：
摘要：
Three types of carbon paste electrodes (CPEs) with different liquid binders were fabricated, and their electrochemical behavior was characterized via a potassium hexacyanoferrate(II) probe. 1-Octyl-3-methylimidazolium hexafluorophosphate ionic liquid (IL) as a hydrophobic conductive pasting binder showed better electrochemical performance compared with the commonly employed binder. The IL-contained CPEs demonstrated excellent electroactivity for oxidation of hydroquinone. A diffusion control mechanism was confirmed and the diffusion coefficient (D) of 5.05 × 10-4 cm2 s-1 was obtained. The hydrophobic IL-CPE is promising for the determination of hydroquinone in terms of high sensitivity, easy operation, and good durability.
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