CdTe Quantum Dots Modified Carbon Paste Electrode for Voltammetric Determination of Ascorbic Acid

被引：0

作者：

Tajik, Somayeh ^{[1
]}

Taher, Mohammad Ali ^{[1
]}

Jahani, Shohreh ^{[2
]}

Shanehsaz, Maryam ^{[3
]}

机构：

[1] Shahid Bahonar Univ Kerman, Dept Chem, POB 76175-133, Kerman, Iran

[2] Grad Univ Adv Technol, Inst Sci & High Technol & Environm Sci, Environm Dept, Kerman, Iran

[3] Mobin Shimi Azma Co, Analyt Chem Res Lab, Tehran, Iran

来源：

ANALYTICAL & BIOANALYTICAL ELECTROCHEMISTRY | 2016年 / 8卷 / 07期

关键词：

Ascorbic acid; Carbon paste electrode; CdTe quantum dots; Chemically modified electrodes;

D O I：

暂无

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel CdTe quantum dots is synthesized and used for modification of carbon paste electrode (QDMCPE). This modified electrode was used to study the electrooxidation of ascorbic acid using cyclic voltammetry (CV), square wave voltammetry (SWV) and chronoamperometry (CHA) as diagnostic techniques. SWV peak currents of ascorbic acid increased linearly with its concentrations in the range of 5.0x10(-7)-8.0x10(-4) M with a detection limit of 3.0x10(-7) M. The main objectives of QDMCPE for determination of ascorbic acid are: wide linear dynamic range, short time of the procedure and no use of electron transfer mediator. Finally this new sensor was used for determination of ascorbic acid in some real samples.

引用

页码：899 / 909

页数：11

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