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易于确定除草剂残留物及其在现场分析中的应用

Yifei Sun^1,2,3, Yan Tang^1,3, Zetao Chen^1,3

¹The Research Institute of Advanced Technology, Ningbo University, Ningbo 315211, China.

Foods (Basel, Switzerland)

|April 27, 2024

概括

一种新方法有效地检测作物中的除草剂残留物,使用改性电离,提供快速,非破坏性的食品安全分析. 这种技术有助于监测农药含量和评估可持续发展的水质量.

科学领域:

农业化学农业化学
分析化学分析化学
食品科学食品科学食品科学

背景情况:

滥用除草剂对食品安全和全球可持续发展构成风险.
准确检测农作物中的除草剂残留物对于消费者保护至关重要.

研究的目的:

开发和优化一种改性离子化方法,用于作物中高效的除草剂分析.
为了在现场快速,选择性和非破坏性地检测除草剂残留物.

主要方法:

采用了经过修改的电离技术,采用了分离的样品和载体气体入口.
优化了包括电压,注射距离,脱吸温度和气体流速在内的关键参数.
一个可编程的加热平台促进了高效的气化和分析物转移,加上一个简单的QuEChERS过程.

主要成果:

该方法实现了在溶液和作物矩阵中的除草剂的定量检测,定量限为1-20μg/kg.
相对标准偏差始终低于15%,显示出高精度.
该技术使用空气作为排放气体显示出有效性,使得在现场进行低检测极限 (LOD) 的非破坏性分析.

结论:

开发的方法为除草剂残留分析提供了高效率,选择性和速度,减轻了矩阵效应.
它为在作物生长阶段对除草剂残留物进行现场非破坏性监测提供了一种可行的方法.
这项技术在食品安全监督和大米质量评估方面具有重大潜力.

关键词:

农作物农作物农作物食品安全食品安全除草剂是一种除草剂.分析物的离子化.方法验证方法的验证方法.在现场进行分析分析.

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