Electrochemical behavior of mefenamic acid at graphene oxide modified carbon paste electrode

被引：10
|
作者：
Talikoti, Nidhi G. [1 ]
Devarushi, Umesh S. [2 ]
Tuwar, Suresh M. [2 ]
Shetti, Nagaraj P. [3 ]
Malode, Shweta J. [3 ]
机构：
[1] Kanakdas Shikshana Samitis Arts Commerce & Sci Co, Dept Chem, Gadag, Karnataka, India
[2] Karnatak Univ, Karnatak Sci Coll, Dept Chem, Dharwad 580001, Karnataka, India
[3] Visvesvaraya Technol Univ, KLE Inst Technol, Dept Chem, Electrochem & Mat Grp, Hubballi 580030, Karnataka, India
来源：
MATERIALS TODAY-PROCEEDINGS | 2019年 / 18卷
关键词：
Graphene oxide; Modified carbon paste; Mefenamic acid; Voltammetry; Pharmaceutical samples and Atomic force microscope; SENSOR; PHARMACEUTICALS; DRUGS; ACETAMINOPHEN; NANOPARTICLES; COMPOSITE; EFFLUENT;
D O I：
10.1016/j.matpr.2019.06.451
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Graphene oxide mixed carbon paste electrode was used to look into the electrochemical performance of bio-active drug, mefenamic acid using voltammetry technique. The outcome of effect of pH, accumulation time, concentrations, scan rate, and excipients were studied. Quantitative determination of mefenamic acid conceded using highly sensitive differential pulse voltammetric method. The detection limit was found to be 0.95 nM for the concentration range 7.0 x 10(-7) M to 1.0 x 10(-10) M. A possible equal number of electron and proton found mechanism of electrochemical oxidation of mefenamic acid was proposed, and activation parameters Delta H-not equal = 26.56 kJ mol(-1), Delta S-not equal = -248.7J K-1 mol(-1), E-a = 29.04 kJ mol(-1) were determined. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：582 / 589
页数：8
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