Citation: Mohammad Mazloum-Ardakani, Mohammad Ali Sheikh-Mohseni, Hadi Beitollahi, Ali Benvidi, Hossein Naeimi. Electrochemical determination of vitamin C in the presence of uric acid by a novel TiO₂ nanoparticles modified carbon paste electrode[J]. Chinese Chemical Letters, ;2010, 21(12): 1471-1474. doi: 10.1016/j.cclet.2010.07.026 shu

Electrochemical determination of vitamin C in the presence of uric acid by a novel TiO₂ nanoparticles modified carbon paste electrode

a Department of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, I. R. Iran;
b Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I. R. Iran

Received Date: 21 April 2010

The electrochemical behavior of vitamin C (ascorbic acid or AA) is investigated on the surface of a carbon-paste electrode modified with TiO₂ nanoparticles and 2, 2'-(1, 2 butanediylbis (nitriloethylidyne))-bis-hydroquinone (BBNBH). The prepared modified electrode showed an efficient catalytic role in the electrochemical oxidation of AA, leading to remarkable decrease in oxidation overpotential and enhancement of the kinetics of the electrode reaction. This modified electrode exhibits well-separated oxidation peaks for AA and uric acid (UA). The modified electrode is successfully applied for the accurate determination of AA in pharmaceutical preparations.
- Aseorbic acid,
- Uric acid,
- TiO₂ nanoparticles,
- Electrocatalysis,
- Modified carbon paste electrode
1. [1]
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2. [2]
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3. [3]
  Qi Zhang , Bin Han , Yucheng Jin , Mingrun Li , Enhui Zhang , Jianzhuang Jiang . 2D and 3D phthalocyanine covalent organic frameworks for electrocatalytic carbon dioxide reduction. Chinese Chemical Letters, 2025, 36(9): 110330-. doi: 10.1016/j.cclet.2024.110330
4. [4]
  Chunru Liu , Ligang Feng . Advances in anode catalysts of methanol-assisted water-splitting reactions for hydrogen generation. Chinese Journal of Structural Chemistry, 2023, 42(10): 100136-100136. doi: 10.1016/j.cjsc.2023.100136
5. [5]
  Guan-Nan Xing , Di-Ye Wei , Hua Zhang , Zhong-Qun Tian , Jian-Feng Li . Pd-based nanocatalysts for oxygen reduction reaction: Preparation, performance, and in-situ characterization. Chinese Journal of Structural Chemistry, 2023, 42(11): 100021-100021. doi: 10.1016/j.cjsc.2023.100021
6. [6]
  Shaojie Ding , Henan Wang , Xiaojing Dai , Yuru Lv , Xinxin Niu , Ruilian Yin , Fangfang Wu , Wenhui Shi , Wenxian Liu , Xiehong Cao . Mn-modulated Co–N–C oxygen electrocatalysts for robust and temperature-adaptative zinc-air batteries. Chinese Journal of Structural Chemistry, 2024, 43(7): 100302-100302. doi: 10.1016/j.cjsc.2024.100302
7. [7]
  Pingfan Zhang , Shihuan Hong , Ning Song , Zhonghui Han , Fei Ge , Gang Dai , Hongjun Dong , Chunmei Li . Alloy as advanced catalysts for electrocatalysis: From materials design to applications. Chinese Chemical Letters, 2024, 35(6): 109073-. doi: 10.1016/j.cclet.2023.109073
8. [8]
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9. [9]
  Anni Wu , Chengyi Hong , Hu Zheng , Wei Teng . Multi-site synergistic relay electrocatalysis with high-entropy nanoalloys for effective nitrate reduction to ammonia. Chinese Chemical Letters, 2025, 36(12): 111066-. doi: 10.1016/j.cclet.2025.111066
10. [10]
  Yicheng Li , Qian Liu , Tianhao Li , Hao Bi , Zhurui Shen . Recent achievements in rare earth modified metal oxides for environmental and energy applications: A review. Chinese Chemical Letters, 2025, 36(9): 110698-. doi: 10.1016/j.cclet.2024.110698
11. [11]
  Xinyu Ren , Hong Liu , Jingang Wang , Jiayuan Yu . Electrospinning-derived functional carbon-based materials for energy conversion and storage. Chinese Chemical Letters, 2024, 35(6): 109282-. doi: 10.1016/j.cclet.2023.109282
12. [12]
  Qianqing Xu , Qu Jiang , Haoyue Zhang , Fang Song . Deciphering the active species of anodically activated carbon-based electrocatalysts for oxygen evolution reaction. Chinese Chemical Letters, 2025, 36(11): 111417-. doi: 10.1016/j.cclet.2025.111417
13. [13]
  Xinyu Wu , Jianfeng Lu , Zihao Zhu , Suijun Liu , Herui Wen . Recent advances of metal-organic frameworks and MOF-derived materials based on p-block metal for the electrochemical reduction of carbon dioxide. Chinese Chemical Letters, 2025, 36(7): 110151-. doi: 10.1016/j.cclet.2024.110151
14. [14]
  Lin Zhang , Jianlong Li , Maoyuan Hu , Yao Xu , Xiaoli Xiong , Zhaoyu Jin . MOF-derived beaded stream-like nitrogen and phosphorus-codoped carbon-coated Fe₃O₄ nanocomposites via lattice-oxygen-mediated mechanism for efficient water oxidation. Chinese Chemical Letters, 2025, 36(8): 111123-. doi: 10.1016/j.cclet.2025.111123
15. [15]
  Ting Xie , Xun He , Lang He , Kai Dong , Yongchao Yao , Zhengwei Cai , Xuwei Liu , Xiaoya Fan , Tengyue Li , Dongdong Zheng , Shengjun Sun , Luming Li , Wei Chu , Asmaa Farouk , Mohamed S. Hamdy , Chenggang Xu , Qingquan Kong , Xuping Sun . CoSe₂ nanowire array enabled highly efficient electrocatalytic reduction of nitrate for ammonia synthesis. Chinese Chemical Letters, 2024, 35(11): 110005-. doi: 10.1016/j.cclet.2024.110005
16. [16]
  Xinyu Hou , Xuelian Yu , Meng Liu , Hengxing Peng , Lijuan Wu , Libing Liao , Guocheng Lv . Ultrafast synthesis of Mo₂N with highly dispersed Ru for efficient alkaline hydrogen evolution. Chinese Chemical Letters, 2025, 36(4): 109845-. doi: 10.1016/j.cclet.2024.109845
17. [17]
  Shengkai Li , Yuqin Zou , Chen Chen , Shuangyin Wang , Zhao-Qing Liu . Defect engineered electrocatalysts for C–N coupling reactions toward urea synthesis. Chinese Chemical Letters, 2024, 35(8): 109147-. doi: 10.1016/j.cclet.2023.109147
18. [18]
  Xianxu Chu , Lu Wang , Junru Li , Hui Xu . Surface chemical microenvironment engineering of catalysts by organic molecules for boosting electrocatalytic reaction. Chinese Chemical Letters, 2024, 35(8): 109105-. doi: 10.1016/j.cclet.2023.109105
19. [19]
  Wei Zhou , Xi Chen , Lin Lu , Xian-Rong Song , Mu-Jia Luo , Qiang Xiao . Recent advances in electrocatalytic generation of indole-derived radical cations and their applications in organic synthesis. Chinese Chemical Letters, 2024, 35(4): 108902-. doi: 10.1016/j.cclet.2023.108902
20. [20]
  Zhihao Gu , Jiabo Le , Hehe Wei , Zehui Sun , Mahmoud Elsayed Hafez , Wei Ma . Unveiling the intrinsic properties of single NiZnFeO_x entity for promoting electrocatalytic oxygen evolution. Chinese Chemical Letters, 2024, 35(4): 108849-. doi: 10.1016/j.cclet.2023.108849