Bi2S3 /rGO/ mwcnt - cooh修饰网印电极耦合玻璃珠辅助超声提取快速检测辣椒素

IF 3.6 3区化学 Q2 CHEMISTRY, ANALYTICAL

Analyst Pub Date : 2025-06-11 DOI:10.1039/d5an00440c

Jie Jiang, xuening Wang, Kai Yu, Zhiping Sun, Qianyun Yu, Yang Chen

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引用次数: 0

摘要

为了实现辣椒素的快速提取和灵敏检测，本研究将玻璃珠辅助超声提取与Bi₂S₃/rGO/ mwcnt - cooh修饰的丝网印刷电极相结合。通过整合乙醇-水溶剂和玻璃微珠，增强了超声空化效果，将提取时间从50分钟缩短到22分钟，同时保持了高效率。复合改性固相SPE表现出优异的电化学性能，通过差分脉冲伏安法（DPV）达到了26 nM的检出限。响应面法优化了提取参数，实样验证结果与HPLC结果一致，具有较高的信度（回收率为94.70 ~ 110.50%）。该方法为食品安全和质量控制应用中的辣椒素现场分析提供了一种快速、环保的解决方案

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Rapid detection of capsaicinoids via Bi2S3 /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 Bi₂S₃/rGO/MWCNT-COOH-modified screen-printed electrode. By integrating ethanol-water solvents and glass beads, the ultrasonic cavitation effect was enhanced, reducing 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). 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 capsaicinoids analysis in food safety and quality control applications

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