Preparation of a Novel Urchin-like Tungsten Copper Self-supporting Electrode for Enzymeless Glucose Sensing

PEI Yuan-jiao; CHEN Yuan; ZHOU Zhen; JING Yi-qi; TAN An-na; WANG Rui-juan

doi:10.19969/j.fxcsxb.22092301

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Preparation of a Novel Urchin-like Tungsten Copper Self-supporting Electrode for Enzymeless Glucose Sensing

Experimental Techniques and Methods | 更新时间：2023-04-18

- Preparation of a Novel Urchin-like Tungsten Copper Self-supporting Electrode for Enzymeless Glucose Sensing
- Journal of Instrumental Analysis Vol. 42, Issue 4, Pages: 495-501(2023)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.19969/j.fxcsxb.22092301
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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.

摘要

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。

Abstract

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.

关键词

海胆状结构葡萄糖电催化氧化电化学检测

Keywords

urchin-like structureglucoseelectrocatalytic oxidationelectrochemical detection

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