拉曼和FTIR光谱的可行性,用于在母乳样本中直接搜索微塑料:比较的定性研究
Agnieszka Dąbrowska1, Wanda Komorowska1, Balázs Kriszt2
1University of Warsaw, Faculty of Chemistry, Laboratory of Spectroscopy and Intermolecular Interactions, Pasteura 1 Str., Warsaw 02-093, Poland.
Ecotoxicology and environmental safety
|April 12, 2025
概括
本研究探讨使用富里埃变换红外光 (FTIR) 和拉曼光谱来检测在没有净化的情况下在母乳中检测微塑性颗粒 (MPs). 这些光谱方法为常见的MP和牛奶分析提供了可行的初步选工具.
科学领域:
- 环境科学 环境科学
- 分析化学 分析化学
- 公共卫生 公共卫生
背景情况:
- 微塑料颗粒 (MP) 在人体组织和生物样本中广泛存在.
- 现有的净化方法用于分析像母乳这样复杂的矩阵中的MP,通常是破坏性的,导致数据丢失和偏差.
- 由于无法净化一些样品,例如母乳,因此需要使用非破坏性分析技术.
研究的目的:
- 评估使用富里埃变换红外光 (FTIR) 和拉曼光谱来快速,非破坏性地检测母乳中的微塑料颗粒 (MPs) 的可行性.
- 评估这些光谱方法在未经先前样本净化的情况下识别聚乙烯 (PE) 和聚烯 (PS) 等特定聚合物的潜力.
- 探索光谱分析对于同时诊断牛奶样本的有用性,例如脂肪含量监测.
主要方法:
- 使用了互补的光谱技术:富里埃变换红外光谱 (FTIR) 和拉曼光谱.
- 在没有任何化学预处理或净化步骤的情况下,应用于母乳样本的方法.
- 使用映射模式扫描大样本区域并识别聚合物存在和生态冠状病毒.
主要成果:
- 证明了FTIR和拉曼光谱的可行性,用于未经净化母乳中初步查常见的MP (PE,PS).
- 证实了检测国会议员及其相关生态冠状病毒的能力.
- 展示了光谱方法在诊断牛奶成分方面的效率,包括监测脂肪含量.
结论:
- FTIR和拉曼光谱是人类牛奶中微塑料颗粒的初步,非破坏性查的宝贵工具.
- 虽然这些方法不适合进行定量分析或检测小部分,但它们有助于快速评估人口样本.
- 频谱方法提供了对MP存在和人体内的潜在相互作用的见解,为正在进行的研究讨论做出了贡献.
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