石墨烯
材料科学
氧化物
电化学
检出限
电极
选择性
电化学气体传感器
多巴胺
金属
再现性
复合材料
化学工程
纳米技术
催化作用
化学
冶金
色谱法
有机化学
物理化学
神经科学
工程类
生物
作者
Shengmiao Sun,Bixuan Wang,Molan Qing,Danbi Tian,Ling Jiang,Liying Zhu
标识
DOI:10.1002/slct.202204720
摘要
Abstract A modified screen‐printed electrode based on zeolite imidazole framework‐8 (ZIF‐8), silver nanoparticles (Ag NPs) and electrochemically reduced graphene oxide (ErGO) were developed to detect dopamine. The morphology and electrochemical performance were investigated, and the results showed that ErGO/Ag‐ZIF‐8 composites were successfully synthesized without destruction of the ZIF‐8 structure. In addition, the peak current of dopamine (DA) oxidation increased linearly in the range of 0.1–200 μ M , and the detection limit was 0.03 μ M (S/N=3). Furthermore, the sensor showed good reproducibility and selectivity, and was successfully applied to the detection of DA in goat serum with a satisfactory recovery range.
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