影响谷物中发生的农药提取的因素
Xiu Yuan1, Chang Jo Kim1, Won Tae Jeong1
1Residual Agrochemical Assessment Division, Department of Agro-Food Safety and Crop Protection, National Institute of Agricultural Sciences, Wanju 55365, Republic of Korea.
Molecules (Basel, Switzerland)
|August 12, 2023
概括
削对从大米和小麦等谷物中提取农药残留物有重大影响. 优化颗粒大小和提取时间可提高产生的农药回收率,这对于食品安全分析至关重要.
科学领域:
- 农业化学 农业化学
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
背景情况:
- 准确量化谷物中产生的农药残留物对于食品安全和监管合规性至关重要.
- 传统的提取方法可能会受到样品制备技术的影响,影响残留产量.
- 了解削和颗粒大小对农药提取效率的影响对于方法开发至关重要.
研究的目的:
- 研究磨削和颗粒大小对从大米,小麦,大麦和麦中产生的9种农药残留物的提取产量的影响.
- 优化样品制备参数,包括旋转时间,提取时间和颗粒大小,以改善农药残留的回收.
- 通过液体染色学-并联质谱法 (LC-MS/MS) 验证优化的提取方法.
主要方法:
- 谷物样本 (大米,小麦,大麦,麦) 被强化了9种农药,并经过干燥,磨和选.
- 使用快速,简单,廉价,有效,坚固和安全的方法 (QuEChERS) 来提取产生的农药残留物.
- 使用液体染色学-并联质谱法 (LC-MS/MS) 实现了农药量化.
主要成果:
- 旋转和增加的提取时间 (长达5分钟) 改善了大米和麦的残留产量.
- 减少颗粒大小 (到>60网格) 提高了大米和大麦的平均产量.
- 大多数农药的最佳产量在小麦和麦中观察到>40网状颗粒大小.
结论:
- 优化的研磨和样品制备参数,包括0.5分钟的旋转,5分钟的提取,以及40个网格的颗粒大小,显著改善了从谷物中提取的农药.
- 经过验证的方法提供了准确和精确的农药残留量化,支持强大的食品安全监测.
- 这些发现为在谷物矩阵中进行农药残留分析的分析方法标准化提供了宝贵的见解.
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