节点文献
基于还原氧化石墨烯-碳纳米管复合物的电化学传感器对木犀草素的检测
An electrochemical sensor based on reduced graphene oxide/carbon nanotube composite for the detection of luteolin
【摘要】 利用一步电化学原位还原法制备了还原氧化石墨烯/多壁碳纳米管复合物(ErGO/MWCNTs),研究木犀草素在该复合物修饰电极(ErGO-MWCNTs/GCE)上的电化学行为,构筑了一种简易、灵敏的电化学传感器用于木犀草素的检测。结果表明,相较于裸电极和ErGO/GCE,ErGO-MWCNTs/GCE利用两种材料的协同作用有效促进了对木犀草素的电催化性能,表现出更灵敏的电流响应。在优化条件下,峰电流与木犀草素的浓度在2.5×10-7~1.3×10-5 mol·L-1范围内呈良好线性关系,检测限为70 nmol·L-1。
【Abstract】 A simple and sensitive electrochemical sensor was constructed for luteolin detection based on the electrochemical behavior of luteolin on the composite modified electrode(ErGO-MWCNTs/GCE).The reduced graphene oxide/multi-walled carbon nanotube composite(ErGO/MWCNTs)was prepared by a one-step electrochemical in-situ reduction method.The results showed that, compared with the bare electrode and ErGO/GCE,ErGO-MWCNTs/GCE showed better electrocatalytic capability for Luteolin because of the positive synergistic electrocatalytic capability of the two materials.Under optimal conditions, the peak current showed a good linear relationship with luteolin concentration in the range of 2.5×10-7~1.3×10-5 mol·L-1 and the detection limit was 70 nmol·L-1.
【Key words】 electrochemistry reduction; graphene oxide; carbon nanotube; luteolin;
- 【文献出处】 化学研究与应用 ,Chemical Research and Application , 编辑部邮箱 ,2021年09期
- 【分类号】TP212;O657.1
- 【被引频次】5
- 【下载频次】467