用Pyr-GC-Orbitrap-MS方法对空气中的微塑料进行目标/非目标分析
Ana Torres-Agullo1, Giuseppina Zuri1, Silvia Lacorte1
1Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
Journal of hazardous materials
|March 10, 2024
概括
一种与轨道轨道质谱法 (Pyr-GC-Orbitrap-MS) 结合的新型热解气色谱法精确量化了环境样本中的微塑料. 该技术为各种塑料聚合物提供可靠的有针对性和无针对性分析.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 微塑料污染是一个日益严重的环境问题.
- 在多种不同的矩阵中精确量化微塑料是具有挑战性的.
- 对于敏感的微塑料检测,需要新的分析技术.
研究的目的:
- 开发和验证与轨道轨道质谱法 (Pyr-GC-Orbitrap-MS) 结合的热解气体染色学方法.
- 评估开发方法的目标和非目标性能.
- 优化10种常见塑料聚合物的分析方法.
主要方法:
- 优化精确的质量测量,用于聚合物识别.
- 内部标准量化以确保线性,可重复性和可重复性.
- 评估空白贡献和仪器检测极限.
- 计算Pyr-GC-Orbitrap-MS方法的组合和扩展不确定性.
- 应用该方法分析体育馆和百货商店的室内空气样本.
主要成果:
- 该Pyr-GC-Orbitrap-MS方法针对10种塑料聚合物进行了优化,实现了良好的线性,可重复性和可重复性.
- 对于每个聚合物来说,评估了仪器检测极限和空白贡献.
- 该方法在微塑料的有针对性和非有针对性的分析中显示出可靠的性能.
- 对室内空气样本的分析证实了该技术的适用性.
结论:
- 开发的Pyr-GC-Orbitrap-MS方法为微塑料的确定提供了一种新的,低水平的,精确的方法.
- 该方法适用于各种环境矩阵中的微塑料和其他物质的定量评估.
- 该技术为有针对性和非有针对性的分析提供了强大的性能,推动了微塑料研究.
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