Premium
Novel Designing of Chemically Modified Electrode (CME) of the Bio‐MOF‐1 for the Detection of Dopamine Based on Inhibition of [Ru(bpy) 3 ] 2+ /DBAE System
Author(s) -
Dong X. Y.,
Zhang R. Z.,
Zhang T. K.,
Liu F. Y.
Publication year - 2021
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201900758
Subject(s) - electrode , detection limit , chemistry , electrochemistry , ruthenium , reproducibility , chemically modified electrode , metal organic framework , analytical chemistry (journal) , nuclear chemistry , inorganic chemistry , working electrode , chromatography , catalysis , organic chemistry , adsorption
Abstract Metal organic frameworks (MOFs) have attracted extensive attention in electrochemical research fields due to their high surface area and controlled porosity. Current study is design to investigate the ECL performance of the chemically modified electrode (CME) based on the bio‐MOF‐1, a porous zinc‐adenine framework, which loaded ruthenium complex and employed for the detection of dopamine (DA). The composite material [Ru(bpy) 3 ] 2+ @bio‐MOF‐1 (Ru‐bMOF) modified carbon glassy electrode (Ru‐bMOF/GCE) exhibited an excellent ECL performance having a linear co‐efficient response (R 2 =0.9968) for 2‐(dibutyl amino) ethanol (DBAE), a classical ECL co‐reactant was obtained over a concentration range of 1.0×10 −9 M to 1.0×10 −4 M in 0.10 M pH=6.0 phosphate buffer solution (PBS). Furthermore, DA was detected based on its inhibition effect on [Ru(bpy) 3 ] 2+ /DBAE system. Compared to traditional analytical methods, this method has various advantages such as simple electrode preparation, quick response, high reproducibility (RSD<2.0 %), low limit of detection (LOD=1.0×10 −10 mol/L). This chemical investigated modified electrode had exploited potential for detection of DA.