Novel Non Enzymatic TBHQ Modified Electrochemical Sensor for Hydrogen Peroxide Determination in Different Beverage Samples

Journal of the Brazilian Chemical Society

Shateri-Khalilabad, Mohammad¹  Shekari, Zahra¹  Ghaani, Masoud¹  Islamic Azad University, Yazd, Iran¹  Nasirizadeh, Navid¹ 

关键词:  hydrogen peroxide;    tertiary butylhydroquinone (TBHQ);    graphene oxide;    silver nanoparticle;    electrocatalytic reduction;   

DOI  :  10.5935/0103-5053.20160037

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

A nanosensor was developed for hydrogen peroxide determination based on nafion/graphene oxide/silver nanoparticles/tertiary butylhydroquinone (TBHQ) modified glassy carbon electrode (N-GO/AgNPs/TBHQ/GCE). Cyclic voltammetry was used to investigate the electrochemical behavior of this modified electrode and differential pulse voltammetry was used for the reduction of H2O2. The limit of detection was 0.46 µmol L-1 and three linear calibration ranges were obtained for H2O2 determination from 1.52-9.79 µmol L-1 for first linear segment, 9.79-231.0 µmol L-1 for second linear segment and 231.0-8330.0 µmol L-1 for third linear segment. Finally, the reliability of the nanosensor was confirmed in the real sample analysis in different beverages with satisfactory results.

【 授权许可】

Unknown