基于凝聚合物电解质的双印电极,用于在葡萄酒中同时定量4-乙烯和乙乙醇的头部空间量化
Paula Portugal-Gómez1, Olga Domínguez-Renedo1, M Asunción Alonso-Lomillo2
1Analytical Chemistry Department, Faculty of Sciences, University of Burgos, Pza. Misael Bañuelos S/N, 09001, Burgos, Spain.
Mikrochimica acta
|March 19, 2024
概括
一种新的电压测量方法可以同时检测葡萄酒中的4-乙烯和乙乙醇. 这种简单的气相测量确保了食品安全,并防止了酒厂的经济损失.
科学领域:
- 分析化学 分析化学
- 电化学 电化学 电化学
- 食品科学 食品科学 食品科学
背景情况:
- 4-乙烯和乙乙醇是葡萄酒中关键的腐烂化合物.
- 准确的检测对于食品安全法规和葡萄酒厂的经济可行性至关重要.
- 现有的方法可能很复杂或缺乏同时检测能力.
研究的目的:
- 开发一种简单的电压计程序,用于同时量化4-乙烯和乙乙醇的气相.
- 为了创建一个强大的电化学传感器,提高操作和存储稳定性.
- 为了验证传感器在葡萄酒生产中进行常规分析的应用.
主要方法:
- 用富勒和 (II) 酸修改的双面丝印电极的制造.
- 用室温离子液体基凝聚合物电解质涂层电极.
- 在气相中使用特定的应用电位和布里顿-罗宾逊缓冲器 (pH5) 进行度测量.
主要成果:
- 实现了4 - 乙烯和乙乙醇的同时量化.
- 获得了高可重复性 (7.6%和6.6%) 和低检测极限 (1.3μg/L和9.2μg/L).
- 成功应用到真实葡萄酒样本 (白色和红色) 的头部空间分析.
结论:
- 开发的双电化学传感器提供了一种简单有效的方法来检测主要的葡萄酒破坏化合物.
- 使用离子液体电解质可以提高传感器的耐用性.
- 这项技术具有强大的潜力,用于葡萄酒厂的常规,快速质量控制.
关键词:
4 - 乙烯基是一种4 - 乙烯基.双面丝网印刷碳电极的使用.乙乙醇 (Ethanethiol) 是一种有机化学物质.气体传感器是一个气体传感器.气相电压计是指气相电压计.在室温的离子液体.葡萄酒的分析.更多相关视频
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