Electrocatalytic Behaviors of Furosemide at APTS and Graphene Modified Carbon Paste Electrode and Its Electrochemical Determination

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Electrocatalytic Behaviors of Furosemide at APTS and Graphene Modified Carbon Paste Electrode and Its Electrochemical Determination

- Electrocatalytic Behaviors of Furosemide at APTS and Graphene Modified Carbon Paste Electrode and Its Electrochemical Determination
- Vol. 36, Issue 11, Pages: 1333-1338(2017)
- 作者机构：
  
  1. 银川能源学院石油化工系
  2. 宁夏出入境检验检疫局
  3. 宁夏大学化学化工学院
  4. 宁夏宝塔化工中心实验室
- 作者简介：
- 基金信息：
- DOI：
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Electrocatalytic Behaviors of Furosemide at APTS and Graphene Modified Carbon Paste Electrode and Its Electrochemical Determination. [J]. 36(11):1333-1338(2017)
DOI：

Electrocatalytic Behaviors of Furosemide at APTS and Graphene Modified Carbon Paste Electrode and Its Electrochemical Determination. [J]. 36(11):1333-1338(2017) DOI：

摘要

研究了呋塞米(FUR)在3-氨基丙基三氧基硅烷(APTS)和石墨烯(RGO)复合修饰碳糊电极(APTS-RGO/CPE)上的电化学行为。实验结果表明，与CPE相比，APTS-RGO/CPE对呋塞米的电化学氧化显著增强，其氧化峰电流增加3.4倍。同时采用循环伏安法(CV)、计时电流法(CA)测定了FUR在APTS-RGO/CPE上的电极反应动力学参数，用微分脉冲伏安法(DPV)测得FUR氧化峰电流与浓度的线性范围为1.3~330 mg/L，检出限(LOD,S/N=3)为1.1×10-2 mg/L。将该修饰电极应用于市售呋塞米片剂的检测，相对标准偏差(RSD)为0.4%~ 4.4%，回收率为98.5%~99.7%，检测结果符合电化学定量测定要求。

Abstract

In this paper,the electrochemical behavior of furosemide(FUR) at 3-anminopro-pyltriethoxsilane(APTS) and graphene(RGO) modified carbon paste electrode(APTS-RGO/CPE) was studied.The experimental results indicated that compared with CPE,APTS-RGO/CPE showed a good promotion towards FUR electrochemical oxidation,and the oxidation peak current increased significantly.Cyclic voltammetry(CV) and chronoamperometry(CA) were used to determine the reaction kinetics parameters of FUR on the APTS-RGO/CPE electrode.The relationship between FUR oxidation peak current and its concentration was evaluated by differential pulse voltammetry(DPV).The oxidation peak current of FUR and its concentration has a good linear relationship in the concentration range of 1.3-330 mg/L with the limit of detection(S/N=3) of 1.1×10-2 mg/L.The proposed method was successfully applied in the determination of commercial tablet samples,with their relative standard deviations of 0.4%-4.4%and recoveries of 98.5%-99.7%.The results were in accord with the requirement of quantitative detection.

关键词

呋塞米3-氨基丙基三氧基硅烷石墨烯修饰碳糊电极电分析方法

Keywords

furosemide3-anminopro-pyltriethoxsilanegraphenemodified carbon paste electrodeelectrochemical determination

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银川大学石油化工学院

Laboratory of Chemistry of Xinjiang Specialty Medicinal and Edible Plant Resources， Kashgar University，Kashgar

School of Chemical Engineering，Guizhou University for Nationalities

Institute of Tea Research，Guizhou Academy of Agricultural Sciences

广东第二师范学院化学系

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