Lanthanide Formate Coordination Polymers for Selective Detection of Dopamine in the Presence of Ascorbic Acid

被引：2

作者：

Belay, Yonas ^{[1
]}

Muller, Alfred ^{[1
]}

Mallick, Kaushik ^{[1
]}

机构：

[1] Univ Johannesburg, Dept Chem Sci, POB 524, ZA-2006 Johannesburg, South Africa

来源：

ELECTROCATALYSIS | 2023年 / 14卷 / 02期

关键词：

Neurotransmitters; Lanthanide coordination polymers; Dopamine; Ascorbic acid; Electrochemical sensors; METAL-ORGANIC FRAMEWORK; ELECTROCHEMICAL DETECTION; NEUROTRANSMITTER DOPAMINE; ELECTRODE; SENSOR;

D O I：

10.1007/s12678-022-00783-x

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：

Three known isostructural lanthanide coordination polymers (Ln CP) were synthesized and their chemical and physical properties were characterized using SCXRD, XRPD, FTIR, SEM-EDS, TGA, CHN elemental analysis and acid digestion proton NMR spectroscopy. The materials were coated on glassy carbon electrode (GCE) using simple drop cast method and their electrochemical activities for detection of dopamine were carried out using cyclovoltammetry (CV), square wave voltammetry (SWV) and electrochemical impedance spectroscopy (EIS) techniques. The fabricated La, Nd and Ce CPs/GCE exhibited good electrochemical activities for selective detection of dopamine than the bare GCE with limit of detection 0.253, 0.241 and 0.159 mu M, respectively. The Ln CP/GCE exhibited small charge transfer resistance (R-ct) than the bare GCE when measured using EIS. The calculated R-ct values for the electrodes were La CP/GCE (ca. 177 Omega) < Ce and Nd CPs/GCE (ca. 233 Omega) < bare GCE (ca. 467 Omega). Furthermore, Ln CP/GCE showed excellent sensitivity for the detection of dopamine.

引用

页码：148 / 158

页数：11

共 33 条

[1] Lanthanum-1,2,3-Triazole-Based 2D Coordination Polymer is anEfficient Catalyst for the Oxidation of Olefins [J].