Electrochemical Determination of Tartrazine in Foods by Voltammetry with a Screen-printed Carbon/Chitosan-MnO2 Microcomposite Electrode

被引：1
|
作者：
Nagles, Edgar [1 ]
Hurtado, John J. [2 ]
机构：
[1] Univ Nacl Mayor San Marcos, Fac Quim & Ingn Quim, Lima 15001, Peru
[2] Univ Los Andes, Dept Chem, Carrera 1 18A-12, Bogota 111711, Colombia
来源：
ELECTROANALYSIS | 2023年 / 35卷 / 04期
关键词：
carbon paste; chitosan; manganese oxide (II); tartrazine; Lineal scan voltammetry; SUNSET YELLOW; OXIDE; SENSOR; NANOPARTICLES; LANTHANUM; DRINKS;
D O I：
10.1002/elan.202200394
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This paper presents a new application for a screen-printed carbon electrode (SPCE) modified with chitosan (Cs) and manganese oxide (II). This new electrode (Cs-Mn-OX/SPCE) was applied in the detection of tartrazine (TZ) by linear scan voltammetry (LSV). The anodic peak current for TZ increased by nearly 500 % compared with Cs/SPCE and unmodified SPCE. The surface of the electrode was characterized by cyclic voltammetry. The detection limit was 0.06 mu mol/L. The relative standard deviations (RSDs) were between 1.0 and 6.0 % (n=15). The accuracy of the new method was evaluated with real samples spiked with known quantities of TZ.
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页数：9
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