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论文类型：期刊论文

发表时间：2021-04-01

发表刊物：ELECTROANALYSIS

卷号：33

期号：3

页面范围：601-608

ISSN号：1040-0397

关键字：Electrochemiluminescence (ECL); Chemically modified electrode (CME); Metal-organic frameworks (MOFs); Dopamine (DA)

摘要：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 1.0x10(-9) M to 1.0x10(-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=1.0x10(-10) mol/L). This chemical investigated modified electrode had exploited potential for detection of DA.