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像Bi₂S₃改性一次性SPCE用于素检测:对氧化机制的实验和DFT洞察

Dhanashri D Khandagale¹, Sea-Fue Wang¹

¹Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, Taipei 106, Taiwan.

|March 11, 2026

概括

一种新型的电化学传感器使用类似桃的硫化 (Bi2S3) 修改的丝印电极,以高灵敏度检测出香草素. 这一进步为食品中可靠的素量化提供了可靠的量化.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
分析化学分析化学

背景情况:

素是一种广泛使用的合成调味剂,由于其人造性质和高消费量,引起了健康问题.
为食品安全和质量控制,开发敏感的素检测方法至关重要.

研究的目的:

开发一种高度敏感和有选择性的电化学传感器,用于素检测.
为了研究像Bi2S3-修改的丝网打印电极 (SPCE) 的性能,用于素量化.

主要方法:

通过一种简单的热水方法合成像Bi2S3纳米粒子.
使用各种结构,光谱和形态技术对Bi2S3进行表征.
在修改后的SPCE上使用微分脉冲电压测量 (DPV) 检测瓦尼林的电化学检测.

主要成果:

经过Bi2S3修改的SPCE表现出一种显着的检测极限 (LOD) - - 素的7nM.
实现了从1nM到99μM的广泛线性检测范围.
该传感器在真实食品样本中表现出卓越的实用性,具有高回收率 (98-99%).
计算研究为瓦尼林氧化机制提供了洞察力.

结论:

开发的类似鱼的Bi2S3修饰的SPCE为电化学瓦尼林检测提供了一个高度敏感和选择性的平台.
这种传感器显示出在食品分析中准确量化素的显著前景.
实验和计算方法的结合增强了对电化学传感机制的理解.

关键词:

计算分析计算分析电化学传感器是一种电化学传感器.食品真实样本食品真实样本热水合成的热水合成类化合物是一种类化合物.

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