相关实验视频

Updated: May 3, 2026

Environmental Screening of Aeromonas hydrophila, Mycobacterium spp., and Pseudocapillaria tomentosa in Zebrafish Systems

Environmental Screening of Aeromonas hydrophila, Mycobacterium spp., and Pseudocapillaria tomentosa in Zebrafish Systems

Published on: December 8, 2017

非目标查显示,在德国AFFF受影响的现场地点发现了124个PFAS,这些PFAS是由新的系统术语所指定的

Melanie Schüßler¹, Catharina Capitain¹, Boris Bugsel¹

¹Environmental Analytical Chemistry, Department of Geosciences, University of Tübingen, Schnarrenbergstraße 94-96, 72076, Tübingen, Germany.

Analytical and bioanalytical chemistry

|October 28, 2024

概括

水性薄膜形成泡 (AFFF) 成分造成了严重的土壤污染. 这项研究确定了124种对-和多醇基物质 (PFAS),包括新型化合物,有助于环境管理.

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:

在消防中使用水性薄膜形成泡 (AFFF) 导致环境污染.
AFFF成分的复杂性和专有性往往阻碍了全面的环境影响评估.
由于AFFF污染了土壤和地下水,因此需要详细描述其化学成分.

研究的目的:

在被AFFF污染的土壤中全面表征基和多基物质 (PFAS).
识别和量化各种PFAS类别,包括新型化合物,存在于受污染的地点.
为AFFF相关的PFAS提出标准化术语,以改善科学沟通.

主要方法:

对土壤样本的系统提取方法的调整.
使用液体染色学高分辨率四极飞行时间质谱法 (LC-QTOF-MS) 进行非目标分析.
对确定检测到的PFAS的可信度级的应用.

主要成果:

在受污染的土壤中识别了124种属于42个子类的per-和多基物质 (PFAS).
检测具有不同 perfluoroalkyl 链长度的阳离子,阴离子和离子 PFAS.
在土壤中发现了一种以前未报告的PFAS,并首次发现了9种PFAS亚类.

结论:

对AFFF污染的广泛描述对于有效的环境管理至关重要.
该研究强调了AFFF组成的复杂性及其对环境的影响.
与AFFF相关的PFAS的标准化术语对于一致的科学报告和理解是必要的.

关键词:

AFFF AFFF 是一个非常有价值的组织.人力资源管理系统HRMS 标识识别识别识别不针对目标的查.在PFAS中,我们可以使用PFAS.土壤土壤土壤.术语术语术语术语术语术语术语术语

更多相关视频

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

Identifying Per- and Polyfluorinated Chemical Species with a Combined Targeted and Non-Targeted-Screening High-Resolution Mass Spectrometry Workflow

Published on: April 18, 2019

Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique

Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique

Published on: September 28, 2022

相关概念视频

Gas Chromatography: Types of Detectors-II

Gas Chromatography: Types of Detectors-II

In gas chromatography, different detectors are employed to meet specific analytical needs. These detectors are often categorized based on their detection mechanisms and the types of compounds they are best suited to analyze. Thermal Conductivity Detectors (TCD), Flame Ionization Detectors (FID), and Electron Capture Detectors (ECD) represent common categories, each with unique operating principles and applications. However, beyond these, several other detectors are designed for more specialized...

Atomic Fluorescence Spectroscopy

Atomic Fluorescence Spectroscopy

Atomic fluorescence spectroscopy (AFS) is an analytical technique that involves the electronic transitions of atoms in a flame, furnace, or plasma being excited by electromagnetic (EM) radiation. When these atoms absorb energy, they become excited and subsequently release energy as they return to their original state. This emitted light, or "fluorescence," is observed at a right angle to the incident beam. Both absorption and emission processes transpire at distinct wavelengths, which...