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一个便携式套件,通过结合固相微提取和表面增强的拉曼光谱来在蔬菜表面高通量测定甲基帕拉

Xiao Meng¹, Lingfei Liu², Haitong Wang¹

¹Physical and Chemical Laboratory, Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong Academy of Occupational Health and Occupational Medicine, Ji'nan, 250000, China.

Mikrochimica acta

|June 20, 2025

概括

一个便携式套件可快速地在现场检测蔬菜中的甲基帕拉 (MPT) 农药残留物,使用先进的SERS技术. 这项创新增强了食品安全查,同时为多个样本提供快速可靠的结果.

科学领域:

分析化学分析化学
食品科学食品科学食品科学
材料科学材料科学材料科学

背景情况:

检测农药残留物对于食品安全至关重要.
现有的农药分析方法可能耗时,需要实验室设置.
需要快速的现场选方法来检测甲基帕拉 (MPT) 等农药.

研究的目的:

开发一种便携式工具包,用于在现场检测蔬菜中的甲基帕拉 (MPT).
整合固相微提取 (SPME) 和表面增强拉曼光谱 (SERS) 进行增强的检测.
为常规农药残留查提供可靠和敏感的方法.

主要方法:

使用银纳米晶体修饰的铜通过电移位制造96井板SERS基板.
在96井板中同时预处理多个蔬菜样本,以防止交叉污染.
在蔬菜表面使用集成的SPME-SERS便携式套件直接确定MPT.

主要成果:

便携式套件实现了MPT的0.27 ng/cm2的方法检测极限.
在高灵敏度的菜,绿胡和番茄表面上快速确定MPT (1.42 ng/cm2,0.84 ng/cm2和0.87 ng/cm2).
通过SERS丰富提高MPT检测灵敏度和特异性的有效性.

结论:

开发的便携式套件为现场杀虫剂残留物查提供了一种多功能和可靠的方法.
这项技术有可能大大加强食品安全监测.
未来的优化可以将其应用扩展到更广泛的有机农药,减少健康风险.

关键词:

高通量分析的分析.甲基帕拉西昂是什么?一个便携式套件.表面增强的拉曼光谱学

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