Rapid detection of capsaicinoids <i>via</i> a Bi <sub>2</sub> S <sub>3</sub> /rGO/MWCNT-COOH-modified screen-printed electrode coupled with glass bead-assisted ultrasonic extraction
In order to achieve rapid extraction and sensitive detection of capsaicinoids, this study combined glass bead-assisted ultrasound extraction with a Bi<sub>2</sub>S<sub>3</sub>/rGO/MWCNT-COOH-modified screen-printed electrode. By integrating ethanol-water solvents and glass beads, the ultrasonic cavitation effect was enhanced, reducing the extraction time from 50 minutes to 22 minutes while maintaining high efficiency. The composite-modified SPE exhibited superior electrochemical performance, achieving a detection limit of 26 nM through differential pulse voltammetry (DPV). The response surface methodology optimized extraction parameters and real-sample validation demonstrated high reliability (recovery: 94.70-110.50%) and consistency with HPLC results. This approach offers a rapid, eco-friendly solution for on-site analysis of capsaicinoids in food safety and quality control applications.
Authors
- X.D. Wang
- Jie Jiang (ORCID: https://orcid.org/0000-0001-9182-335X)
- Zhiping Sun (ORCID: https://orcid.org/0000-0002-3094-0584)
- Yang Chen (ORCID: https://orcid.org/0000-0002-8501-5417)
- Kai Yu (ORCID: https://orcid.org/0000-0002-6460-831X)
- Qin Yu (ORCID: https://orcid.org/0000-0002-5099-0327)
Institutions
- Harbin Institute of Technology (CN)
Publication Details
- Journal
- The Analyst
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5an00440c
- Primary Topic
- Analytical Chemistry and Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Department of Science and Technology of Shandong Province