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Electrochemical detection of carbendazim in foods based on copper oxide nanoparticle-modified electrode
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Ya-Jie LI1, Die-Yan ZENG2, Yu WAN2, Ya-Xian LI1, Zhi LU1, *, Hao DONG2, Feng-Song LIU1, Xiao-Juan ZHAO2, *
Journal of Food Safety & Quality | 2026, 17(18) : 173 - 181
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Journal of Food Safety & Quality | 2026, 17(18): 173-181
• Special Topic: Rapid Detection Technology for Food Safety •
Electrochemical detection of carbendazim in foods based on copper oxide nanoparticle-modified electrode
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Ya-Jie LI1, Die-Yan ZENG2, Yu WAN2, Ya-Xian LI1, Zhi LU1, *, Hao DONG2, Feng-Song LIU1, Xiao-Juan ZHAO2, *
Affiliations
  • 1.Infinitus (China) Company Ltd., Guangzhou 510405, China
  • 2.College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
doi: 10.19812/j.cnki.jfsq11-5956/ts.20260417001
Outline
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Objective

To establish an electrochemical sensing method based on a copper oxide nanoparticle-modified electrode for the determination of carbendazim in foods.

Methods

The 3 kinds of modified electrodes were prepared by the drop-coating method. The screen-printed electrode (SPE) and the 3 kinds of modified electrodes were electrochemically characterized and screened by cyclic voltammetry and electrochemical impedance spectroscopy. The electrochemical response behavior of carbendazim on the surface of copper oxide nanoparticle-modified SPE (CuONPs/SPE) and the effects of scan rate were investigated by cyclic voltammetry. The supporting electrolyte and pH were optimized by differential pulse voltammetry, and the analytical performance such as the limit of detection and repeatability of the method was investigated.

Results

The oxidation peak current of carbendazim on different electrode surfaces showed significant differences. Among them, CuONPs/SPE exhibited the largest oxidation peak current response. Under the optimal conditions, the oxidation peak current showed a good linear relationship with carbendazim concentration in the range of 0.1–200.0 µmol/L, and the limit of detection was 29.6 nmol/L.This method was applied to detect fresh shiitake mushrooms, fresh yam and grass carp samples. The spiked recoveries were 92.7%–113.9%, 84.9%–110.2% and 89.0%–93.5%, respectively.

Conclusion

The established CuONPs/SPE electrochemical sensing method has the advantages of simple electrode preparation, low detection cost and rapid response. It is suitable for the rapid determination of carbendazim content in various actual samples.

carbendazim  /  nanomaterials  /  electrochemical sensor  /  modified electrode  /  differential pulse voltammetry
李亚杰, 曾叠雁, 万宇, 李亚贤, 陆智, 董浩, 刘凤松, 赵晓娟. 基于纳米氧化铜修饰电极电化学检测食品中的多菌灵. 食品安全质量检测学报, 2026 , 17 (18) : 173 -181 . DOI: 10.19812/j.cnki.jfsq11-5956/ts.20260417001
Ya-Jie LI, Die-Yan ZENG, Yu WAN, Ya-Xian LI, Zhi LU, Hao DONG, Feng-Song LIU, Xiao-Juan ZHAO. Electrochemical detection of carbendazim in foods based on copper oxide nanoparticle-modified electrode[J]. Journal of Food Safety & Quality, 2026 , 17 (18) : 173 -181 . DOI: 10.19812/j.cnki.jfsq11-5956/ts.20260417001
Appendix
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Year 2026 volume 17 Issue 18
6
1
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Article Info
doi: 10.19812/j.cnki.jfsq11-5956/ts.20260417001
  • Receive Date：2026-04-17
  • Online Date：2026-11-05
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  • Received：2026-04-17
Funding
Affiliations
    1.Infinitus (China) Company Ltd., Guangzhou 510405, China
    2.College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
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https://castjournals.cast.org.cn/joweb/spaq/EN/10.19812/j.cnki.jfsq11-5956/ts.20260417001
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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