Polymer Modified Carbon Paste Electrode as a Sensitive Sensor for the Electrochemical Determination of Riboflavin and Its Application in Pharmaceutical and Biological Samples

被引：0
|
作者：
D'Souza, Edwin S. [1 ,2 ]
Manjunatha, J. G. [1 ]
Raril, C. [1 ]
Tigari, Girish [1 ]
Pushpanjali, P. A. [1 ]
机构：
[1] Mangalore Univ, Constituent Coll, FMKMC Coll, Dept Chem, Madikeri, Karnataka, India
[2] St Philomena Coll, Dept Chem, Puttur, Karnataka, India
来源：
ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH | 2020年 / 7卷 / 04期
关键词：
Riboflavin; Electrochemical sensor; Carbon paste electrode; Poly (threonine); Ascorbic acid; Folic acid; ASCORBIC-ACID; VOLTAMMETRIC DETERMINATION; SELECTIVE DETERMINATION; FILM ELECTRODE; IONIC LIQUID; FOLIC-ACID; FLUORESCENCE; B-2; FABRICATION; SEPARATION;
D O I：
暂无
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Poly (threonine) modified carbon paste electrode (PTMCPE) can be used as a responsive and selective electrocatalytic sensor for the estimation of riboflavin (RF) by means of cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The proposed electrode creates a catalytic enhancement in redox behavior of RF when equated with bare carbon paste electrode (BCPE). Under optimized conditions, RF quantification at modified electrode has shown a detection limit of 1.78 x 10(-7) M in the linear range of 0.2-1 mu M and 1-5 mu M. Simultaneous analysis of RF with folic acid (FA) and ascorbic acid (AA) shows well-separated peaks leading to a quick and selective analysis of RF. The fabricated sensor can be successfully applied to RF analysis in human blood serum and B- complex tablet with acceptable results.
引用
收藏
页码：461 / 472
页数：12
相关论文
共 50 条
12345