全文下载: 202301005.pdf
文章编号: 1672-6987(2023)01-0044-05; DOI: 10.16351/j.1672-6987.2023.01.005
汤洪波*, 周晓燕, 王春艳, 周健(宜春学院 化学与生物工程学院,江西 宜春 336000)
摘要: 采用电沉积法制备石墨烯修饰的rGO/GCE电极,并通过循环伏安法研究了尿酸在rGO/GCE电极上的电化学行为。实验结果证明,与裸玻碳电极相比rGO/GCE修饰电极对尿酸的电催化氧化有明显增强作用。在90×10-4~70×10-5 mol·L-1尿酸浓度范围内,rGO/GCE修饰电极检测尿酸的峰电流与的其浓度呈线性关系,尿酸的检出限为1×10-7 mol·L-1。采用rGO/GCE修饰电极对尿酸进行加标回收率检测,具体结果为994%~1028%。
关键词: 尿酸; 电沉积; 修饰电极; 石墨烯
中图分类号: R 917文献标志码: A
引用格式: 汤洪波, 周晓燕, 王春艳, 等. 电沉积石墨烯修饰玻碳电极检测尿酸[J]. 青岛科技大学学报(自然科学版), 2023, 44(1): 44-48.
TANG Hongbo, ZHOU Xiaoyan, WANG Chunyan, et al. Determination of uric acid by electrodeposited graphene modified glassy carbon electrode[J]. Journal of Qingdao University of Science and Technology(Natural Science Edition), 2023, 44(1): 44-48.
Determination of Uric Acid by Electrodeposited Graphene
Modified Glassy Carbon Electrode
TANG Hongbo, ZHOU Xiaoyan, WANG Chunyan, ZHOU Jian
(College of Chemistry and Bioengineering, Yichun University, Yichun 336000,China)
Abstract: The graphene modified electrode of rGO/GCE was prepared by electrodeposition. The electrochemical behavior of uric acid on rGO/GCE electrode were studied by cyclic voltammetry. The experimental results showed that the modified electrode had a stronger electrocatalytic effect on the oxidation of uric acid than bare glassy carbon electrode. Under the optimal experimental conditions, the peak current was linear with the concentration of uric acid in the range of 90×10-4—70×10-5 mol·L-1. The detection limit of uric acid was 1×10-7 mol·L-1. The recovery of uric acid was 994%—1028%.
Key words:uric acid; electrodeposition; modified electrode; graphene
收稿日期: 2022-01-17
基金项目: 江西省卫计委科技计划项目(202131068).
作者简介: 汤洪波 (1980—),男,博士. *通信联系人.