Polyaniline-graphene oxide nanocomposite sensor for quantification of calcium channel blocker levamlodipine

被引：25
作者：
Jain, Rajeev [1 ]
Sinha, Ankita [1 ]
Khan, Ab Lateef [1 ]
机构：
[1] Jiwaji Univ, Sch Studies Chem, Gwalior 474011, India
来源：
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2016年 / 65卷
关键词：
Nanocomposite; Electrochemical properties; Levamlodipine (LAMP); Polyaniline-graphene oxide modified glassy carbon electrode (PANI/GO/GCE); ANODIC-STRIPPING VOLTAMMETRY; CARBON-PASTE ELECTRODE; NANOTUBES HYBRID FILM; AMLODIPINE BESYLATE; GRAPHITE OXIDE; ELECTROCHEMICAL DETERMINATION; HUMAN SERUM; BIOSENSOR; DRUG; TABLETS;
D O I：
10.1016/j.msec.2016.03.115
中图分类号：
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号：
0805 ; 080501 ; 080502 ;
摘要：
A novel polyaniline-graphene oxide nanocomposite (PANI/GO/GCE) sensor has been fabricated for quantification of a calcium channel blocker drug levamlodipine (LAMP). Fabricated sensor has been characterized by electrochemical impedance spectroscopy, square wave and cyclic voltammetry, Raman spectroscopy and Fourier transform infrared (FTIR) spectroscopy. The developed PANI/GO/GCE sensor has excellent analytical performance towards electrocatalytic oxidation as compared to PANI/GCE, GO/GCE and bare GCE. Under optimized experimental conditions, the fabricated sensor exhibits a linear response for LAMP for its oxidation over a concentration range from 1.25 mu g mL(-1) to 13.25 mu g mL(-1) with correlation coefficient of 0.9950 (r(2)), detection limit of 1.07 ng mL(-1) and quantification limit of 3.57 ng mL(-1). The sensor shows an excellent performance for detecting LAMP with reproducibility of 2.78% relative standard deviation (RSD). The proposed method has been successfully applied for LAMP determination in pharmaceutical formulation with a recovery from 99.88% to 101.75%. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：205 / 214
页数：10
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