Poly-terephthalic acid modified pencil graphite electrode for the electrochemical determination of vitamin B6

被引：8
作者：
Sajeevan, Bhama [1 ]
Sreelekshmi [1 ]
Gopika, M. G. [1 ]
Santhy, A. [1 ]
Govindasamy, Mani [2 ]
Saraswathyamma, Beena [1 ]
机构：
[1] Amrita Vishwa Vidyapeetham, Dept Chem, Amritapuri 690525, Kollam, India
[2] Ming Chi Univ Technol, New Taipei 243303, Taiwan
来源：
IONICS | 2023年 / 29卷 / 10期
关键词：
Electrochemical sensor; Pyridoxine; Pencil graphite electrode; Terephthalic acid; CARBON-PASTE ELECTRODE; VOLTAMMETRIC DETERMINATION; SELECTIVE DETERMINATION; PYRIDOXINE; SENSOR; SUPPLEMENTATION;
D O I：
10.1007/s11581-023-05156-y
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Reporting for the first time, a poly-terephthalic acid modified pencil graphite electrode (PGE) for the quantitative detection of pyridoxine or vitamin B6 (VB6) from pharmaceutical samples. The developed sensor was characterized using scanning electron microscopy, energy dispersive X-ray spectroscopy, infrared spectroscopy, and electrochemical impedance spectroscopy. Cyclic and differential pulse voltammetric techniques were used for the investigation of the electro-oxidation of VB6 on the electrode. The characteristic oxidation peak of VB6 was found to be located at a potential of 0.58 V in the supporting electrolyte solution, phosphate buffer solution with pH 7. This novel electrochemical sensor has a linear range of 0.1-3500 & mu;M with an LOD of 0.0102 & mu;M. As a result, the fabricated electrode can be utilized for pharmaceutical analysis.
引用
收藏
页码：4389 / 4396
页数：8
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