广西农产资源化学与生物技术重点实验室,广西高校桂东南特色农产资源高效利用重点实验室, 玉林师范学院 化学与食品科学学院,广西 玉林 537000
王瑞娟,博士,研究方向:电化学分析及材料合成,E-mail:wrjuan521@163.com
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裴苑娇,陈渊,周振等.新型海胆状钨铜自支撑电极的制备及其葡萄糖无酶传感[J].分析测试学报,2023,42(04):495-501.
PEI Yuan-jiao,CHEN Yuan,ZHOU Zhen,et al.Preparation of a Novel Urchin-like Tungsten Copper Self-supporting Electrode for Enzymeless Glucose Sensing[J].Journal of Instrumental Analysis,2023,42(04):495-501.
裴苑娇,陈渊,周振等.新型海胆状钨铜自支撑电极的制备及其葡萄糖无酶传感[J].分析测试学报,2023,42(04):495-501. DOI: 10.19969/j.fxcsxb.22092301.
PEI Yuan-jiao,CHEN Yuan,ZHOU Zhen,et al.Preparation of a Novel Urchin-like Tungsten Copper Self-supporting Electrode for Enzymeless Glucose Sensing[J].Journal of Instrumental Analysis,2023,42(04):495-501. DOI: 10.19969/j.fxcsxb.22092301.
该文采用方波脉冲法在光滑W,70,Cu,30,电极表面快速、高效制备海胆状结构的自支撑电极(U-WCu),并用于葡萄糖的电化学检测,其表现出比单一纳米铜(N-Cu)更优异的电化学性能。考察了脉冲时间、脉冲频率和电势范围对葡萄糖电催化氧化的影响。采用循环伏安法(CV)比较了U-WCu电极和N-Cu电极在0.1 mol/L NaOH溶液中对葡萄糖的电催化氧化行为,构建了基于U-WCu海胆状电极的无酶电化学传感器。该电极的线性范围宽(2 μmol/L ~ 10 mmol/L),检出限(,S,/,N, = 3)低至0.21 μmol/L,灵敏度高达4 983 μA∙mmol∙L,-1,∙cm,-2,。方法有极好的重复性、重现性,良好的抗干扰性,以及长达8周的稳定性,并成功用于葡萄糖注射液中葡萄糖含量的测定。
A novel urchin-like tungsten copper(U-WCu) self-supporting electrode for electrochemical detection of glucose was rapidly and efficiently fabricated by square wave pulse method on the surface of smooth W,70,Cu,30, electrode in this paper.The U-WCu electrode showed a better electrochemical performance than the nano-copper(N-Cu).Effects of pulse time,pulse frequency and potential range on the electrocatalytic oxidation of glucose were investigated in detail.Cyclic voltammetry(CV) was used to compare the electrocatalytic oxidation behaviors of glucose between U-WCu electrode and N-Cu electrode in 0.1 mol/L NaOH solution,and an enzyme-free electrochemical sensor based on the U-WCu electrode was constructed.The electrode has a wide linear range(2 μmol/L-10 mmol/L),a low detection limit(,S,/,N, = 3) for glucose(0.21 μmol/L) and a high sensitivity up to 4 983 μA∙mmol∙L,-1,∙cm,-2,.Moreover,the sensor exhibited excellent repeatability,reproducibility,stability and good anti-interference,and it was successfully applied to the determination of glucose content in glucose injection.
海胆状结构葡萄糖电催化氧化电化学检测
urchin-like structureglucoseelectrocatalytic oxidationelectrochemical detection
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