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基于固体相微提取,其次是气色谱-质谱的甲基醇的测量及其在固体废物研究中的应用

Mojtaba Nouri Goukeh¹, Tarek Abichou¹, Youneng Tang¹

¹Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, Florida State University, 2525 Pottsdamer Street, Tallahassee, FL, 32310, United States.

|October 18, 2023

概括

使用固相微提取和气体染色学/质谱学 (SPME-GC/MS) 的新方法可以准确地测量气体和固体样本中的醇醇 (FTOHs). 这些技术为环境分析提供了更好的灵敏度和更低的污染风险.

科学领域:

环境化学环境化学
分析化学分析化学
环境科学环境科学

背景情况:

甲基醇 (FTOH) 是普遍存在的环境污染物.
在各种矩阵中精确量化FTOH对于暴露评估至关重要.
现有的FTOH分析方法可能是劳动密集型的,容易分析损失.

研究的目的:

开发和验证用于测量气体和固体样本中的FTOHs的敏感方法.
通过减少样品准备步骤和尽量减少污染风险,改进现有的分析技术.
应用开发的方法来评估现实环境样本中的FTOH水平.

主要方法:

固相微提取 (SPME) 与气体染色学/质谱学 (GC/MS) 结合用于气体样本分析.
溶剂提取,然后进行头空间SPME-GC/MS,用于固体样本分析.
方法验证,包括确定 6:2 和 8:2 FTOH 的量化极限.

主要成果:

在气体样本中,SPME-GC/MS方法实现了6:2和8:2 FTOH的6-7 ng/L的量化极限.
提取头空间SPME-GC/MS方法在固体样本中实现了6:2和8:2 FTOH的40-43 ng/g的量化极限.
在垃圾填埋场的气体排放和消费品中检测到FTOH;观察到模拟垃圾填埋场的线性释放.

结论:

开发的基于SPME-GC/MS的方法提供了在气体和固体矩阵中的FTOH的灵敏和高效量化.
在固体样本分析中消除溶剂蒸发步骤可以减少分析物损失和污染风险.
这些方法适用于环境监测和废物研究,揭示FTOH存在和释放动态.

关键词:

甲基醇醇 (FTOHs) 是一种气体染色学/质谱学 (GC/MS) 是一种垃圾填埋场是一个垃圾填埋场.固体相微提取 (SPME) 是一种微提取技术.易挥发的多和多基基物质 (PFAS)

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