Influence of mineralizer in the preparation of Bi2CuO4 sensor for the electrochemical evaluation of chlorogenic acid in various real-time samples

被引：7

作者：

Amalraj, Antolin Jesila Jesu ^{[1
]}

Wang, Sea-Fue ^{[1
]}

机构：

[1] Natl Taipei Univ Technol, Dept Mat & Mineral Resources Engn, 1,Sect 3,Chung Hsiao East Rd, Taipei 106, Taiwan

来源：

MATERIALS TODAY CHEMISTRY | 2022年 / 26卷

关键词：

Bi2CuO4-KOH flower; Electrochemical sensor; Chlorogenic acid detection; Redox analysis; MICROWAVE-ASSISTED EXTRACTION; WALLED CARBON NANOTUBES; VOLTAMMETRIC DETERMINATION; PHOTOCATALYTIC ACTIVITY; CUBI2O4; PERFORMANCE; MECHANISM; CHROMATOGRAPHY; QUANTITATION; ANTIOXIDANT;

D O I：

10.1016/j.mtchem.2022.101154

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bismuth copper oxide (Bi2CuO4) has been prepared with varied morphologies and explored as an electrode modifier for chlorogenic acid (CGA) electrochemical sensors. The mineralizer agents such as NaOH, KOH, and NH4OH served as a chemical agent and pH stabilizer in attaining variations in the morphology. The variation in the morphology attributes to the effect of viscosity of the corresponding mineralizer. The attained variation between the prepared Bi2CuO4 was revealed by different physico-chemical characterization and electrochemical techniques. Bi2CuO4-KOH modified glassy carbon elec-trode (GCE) exemplifies an excellent redox performance, due to the higher ionic mobility and conductivity of KOH. The Bi2CuO4-KOH modified GCE was implemented towards the electrochemical sensing of CGA with the aid of differential pulse voltammetry (DPV). Further, it demonstrates exquisite electroanalytical performance including a wide linear range (0.05-556 mM) and nanomolar level detection (4.8 nM) with appraisable sensitivity of 0.22 mA/mM cm-2 for oxidation. In addition, the pro-posed sensor exemplifies higher selectivity with excellent repeatability, reproducibility, and stability. Moreover, the practical feasibility analysis with various real samples displays excellent recovery results for the electrochemical sensing of CGA.(c) 2022 Elsevier Ltd. All rights reserved.

引用

页数：13

共 76 条

[1]

Abdelkader Elaziouti, 2015, Journal of King Saud University Science, V27, P76, DOI 10.1016/j.jksus.2014.06.002

[2] Qualitative and quantitative high performance thin layer chromatography analysis of Calendula officinalis using high resolution plate imaging and artificial neural network data modelling. [J].