一篇评论:从环境矩阵中提取有机污染物的亚临界水抽取
Erdal Yabalak1, Mohammad Tahir Aminzai2, Ahmet Murat Gizir3
1Department of Nanotechnology and Advanced Materials, Mersin University, TR-33343 Mersin, Türkiye.
Molecules (Basel, Switzerland)
|January 11, 2024
概括
亚临界水提取有效地将农药和PCB等持久有机污染物从环境样本中隔离出来. 这种方法为污染监测和生态影响评估提供了一种敏感而高效的方法.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 绿色化学 绿色化学
背景情况:
- 有机污染物由于其持久性和抗退化能力,造成全球环境风险.
- 有机化合物的广泛使用导致大量的环境释放到空气,水和土壤中.
- 持久性,生物积累性和危险的污染物,如农药,PCB和PAH,需要有效的检测方法.
研究的目的:
- 审查用于环境污染物分析的亚临界水提取 (SWE) 技术.
- 突出SWE在提取各种有机污染物的应用.
- 讨论关键参数对SWE效率的影响.
主要方法:
- 超临界水提取 (SWE) 作为一种环保的提取技术的概述.
- 与压力液体提取,微波辅助提取和超临界流体提取等其他方法进行比较.
- 专注于SWE从环境矩阵中提取多环芳 (PAH),多二 (PCB) 和农药的应用.
主要成果:
- 亚临界水提取在广泛的有机污染物中显示出高效率.
- 与环境样本的常规提取技术相比,SWE被认为是一种优越的方法.
- 提取效率和回收受到温度,压力和时间等参数的重大影响.
结论:
- 亚临界水提取是一种高效和多功能技术,用于从各种环境矩阵中分离有机污染物.
- SWE为环境监测和持久有机污染物风险评估提供了一种敏感而高效的方法.
- 提取参数的优化对于在亚临界水提取中最大限度地提高效率和回收至关重要.
更多相关视频
13:16A Whole Cell Bioreporter Approach to Assess Transport and Bioavailability of Organic Contaminants in Water Unsaturated Systems
Published on: December 24, 2014
10.4K
09:38Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
8.6K
相关概念视频
Extraction: Advanced Methods
447
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
447
Bioremediation
18.4K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.4K
