Abstract
Objective: Detect lead ions in water using Fe3O4@C/[BSMIM]HSO4/GCE. Methods: The Fe3O4@C that had core-shell structure was synthesized based on Fe3O4 which was compounded with 1-methyl-3-butanesulphonic acid imidazole bisulfate ionic liquid for preparing the Fe3O4@C/[BSMIM]HSO4 sensor that using the glassy carbon electrode as carrier. Results: The study found that Fe3O4@C had a good conductivity and dispersion. The Fe3O4@C/[BSMIM]HSO4/GCE has a good electrochemical stability and electrocatalytic activity. The quantitative analysis of lead ion in drinking water was done using the Fe3O4@C/[BSMIM]HSO4/GCE. The result showed that there was a good linear relationship between the concentration of lead ion and its oxidation peak current in the range of 0.1～80.0 μg/L, R2=0.999 5, the detection limit was 0.038 μg/L(S/N=3), which was very low, and the recovery was 97.60%～100.93%, with very good recovery effect and high accuracy. The sensor has a good repeatability, the RSD for 10 times was 2.446%. Conclusion: The method is simple, fast and reliable, which provides a new solution for the detecting the lead ions in drinking water.
Publication Date
10-28-2021
First Page
61
Last Page
66
DOI
10.13652/j.issn.1003-5788.2021.10.011
Recommended Citation
Xiao-wei, LIU; Wei-hao, WANG; Yuan-nong, GU; and Jing-jing, WANG
(2021)
"Detection of lead based on Fe3O4@C/[BSMIM]HSO4/GCE sensor,"
Food and Machinery: Vol. 37:
Iss.
10, Article 11.
DOI: 10.13652/j.issn.1003-5788.2021.10.011
Available at:
https://www.ifoodmm.cn/journal/vol37/iss10/11
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