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Citation: ZHAO Chang-Zhi, ZHANG Li, XIN Chen. Electrochemical Analysis of Azodicarbonamide in Hot Solution by Using Nafion Film Electrode[J]. Chinese Journal of Analytical Chemistry, ;2017, 45(2): 169-174. doi: 10.11895/j.issn.0253-3820.160778 shu

Electrochemical Analysis of Azodicarbonamide in Hot Solution by Using Nafion Film Electrode

Shandong Provincial Key Laboratory of Biochemical Analysis, College of Chemistry & Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China

Received Date: 26 October 2016
Revised Date: 6 December 2016

Fund Project: This work was supported by the Open-end Fund of Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education (No. SATM201503)

Based on the high solubility of azodicarbonamide (ADC) in hot solution and its electrostatic interaction with Nafion film, a new electroanalytical method was developed for the determination of ADC by using Nafion film electrode. The effect of temperature on the solubility of ADC and the mechanism of the reduction reaction of ADC on Nafion film electrode were investigated. Under the experimental conditions such as water bath at a constant temperature of 80℃, pH 6.0 and optimal test parameters, the differential pulse voltammetric response was proportional to the concentration of ADC in the range of 0.93-10.5 μg/L, and the detection limit was estimated to 0.58 μg/L. The relative standard deviation was less than 5.86% and the recovery was 95.8%-104.0% for the determination of the ADC in flour samples. The semicarbazide and nitrofurazone did not interfere with the determination of ADC.
- Electrochemical analysis,
- Azodicarbonamide,
- Nafion film electrode,
- Hot solution,
- Flour
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