在未烤的绿色咖啡豆中用液体染色学 (LC-MS/MS) 和双重质谱法 (Tandem Mass Spectrometry) 确定草甘的替代方法
Ana Carolina Pereira Paiva1, Emanuel Carvalho de Assis1, Leonardo d'Antonino2
1Department of Chemistry, Universidade Federal de Viçosa, Viçosa, Minas Gerais 36570900, Brasil.
Journal of agricultural and food chemistry
|October 24, 2024
概括
一种新的,更快的方法使用LC-MS/MS准确检测未烤咖啡豆中的草甘. 这种简单的技术通过监测农药残留物来确保咖啡的安全性和质量.
科学领域:
- 分析化学 分析化学
- 食品科学 食品科学 食品科学
- 环境科学 环境科学
背景情况:
- 草甘是一种广泛使用的除草剂.
- 监测咖啡等食品中的草甘残留物对于消费者安全至关重要.
- 现有的草甘检测方法可能耗时且复杂.
研究的目的:
- 开发和验证一种简化,快速的分析方法,用于检测和量化未烤绿色咖啡豆中的草甘残留物.
- 提高咖啡豆中草甘残留分析的效率.
- 通过建立可靠的监测工具来确保咖啡的安全性和质量.
主要方法:
- 液体染色学-双重质谱法 (LC-MS/MS) 用于检测和量化.
- 样品准备涉及整合清洁,没有衍生步骤,以提高速度和频率.
- 方法验证包括对特异性,线性,精度,回收和量化极限 (LOQ) 的评估.
主要成果:
- 开发的方法表现出极好的线性 (r2 = 0.9991),精度 (RSD ≤9%) 和回收率 (92-112%).
- 达到了0.48毫克/kg-1的令人满意的量化极限 (LOQ).
- 该方法已成功应用于分析真实咖啡豆样本,其中两个样本显示可检测到低于LOQ的草甘污染.
结论:
- 拟议的LC-MS/MS方法为监测未烤咖啡豆中的草甘残留物提供了一种简单,快速和合适的方法.
- 这种经过验证的方法可以有效地实施,以保证咖啡供应链中的食品质量和安全.
- 这些发现强调了持续对咖啡中的草甘监测的重要性,以保护公共健康.
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