Surface and Electrochemical Characterization of a New Layered GC/Betaine/Pt Electrode and Investigation on its Performance as a Sensor for two B Complex Vitamins, B1 and B6: Preliminary Results

被引：5

作者：

Contursi, M. ^{[1
]}

Coviello, D. ^{[1
]}

Ciriello, R. ^{[1
]}

Guerrieri, A. ^{[1
]}

Palmieri, M. A. ^{[1
]}

Langerame, F. ^{[1
]}

Bianco, G. ^{[1
]}

Salvi, A. M. ^{[1
]}

机构：

[1] Univ Basilicata, Sci Dept, Potenza, Italy

来源：

ELECTROANALYSIS | 2021年 / 33卷 / 02期

关键词：

B1 and B6 vitamins; cyclic voltammetry; glassy carbon; betaine; Pt sensor; pulsed potentials; surface analysis; GLASSY-CARBON ELECTRODE; ELECTROCATALYTIC OXIDATION; VOLTAMMETRIC DETERMINATION; PHOTOELECTRON-SPECTROSCOPY; PLATINUM; CHOLINE; MEMBRANE; XPS; SUBSTRATE; PEPTIDES;

D O I：

10.1002/elan.202060226

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrochemical preparation of a novel composite glassy carbon/betaine/platinum (GC/BT/Pt) electrode with meso- nano Pt globules dispersed on the outer surface and betaine, as intermediate layer, electrodeposited on GC by Cyclic Voltammetry (CV) or Pulsed Potential (PP) techniques, is presented. Surface analysis by Scanning Electron Microscopy (SEM) and X-ray Photoelectron Spectroscopy (XPS) confirms the strategic role of grafted betaine in modulating GC/BT- interaction sites and the range of potentials for adequate platinum CV electrodeposition. The GC/BT/Pt performance, concerning sensitivity, linearity, work potentials and repeatability tests with Flow Injection Analysis (FIA), was ascertained for the detection of vitamins B1 and B6.

引用

页码：483 / 494

页数：12

共 60 条

[1] Electrodeposition of zinc-tin alloys from deep eutectic solvents based on choline chloride [J].