最新的传感器检测方法对基和多基物质进行检测.
Mingyu Zhang1, Yanan Zhao1, Brian Bui2
1Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang, China.
Critical reviews in analytical chemistry
|January 18, 2024
概括
和多基基物质 (PFAS) 是环境污染物. 新的光学和电化学传感器为检测PFAS提供了更快,更便宜和现场部署的方法,克服了传统染色学和质谱学的局限性.
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:
- 和多醇基物质 (PFAS) 是持久性环境污染物,具有显著的生物积累潜力.
- PFAS污染对生态系统和人类健康构成风险,需要有效的检测策略.
- 目前的标准方法 (色谱-质谱) 昂贵,耗时,需要复杂的样本准备.
研究的目的:
- 审查用于检测PFAS的传感器技术的最新进展.
- 分类和解释替代PFAS检测传感器的原理和机制.
- 为了比较各种传感器类型的性能指标 (检测极限,灵敏度).
主要方法:
- 关于用于检测PFAS的光学和电化学传感器的科学文献的审查.
- 根据检测原理和机制对传感器进行分类.
- 对传感器性能进行比较分析,包括检测和灵敏度的极限.
主要成果:
- 光学和电化学传感器为传统的PFAS检测方法提供了有希望的替代方案.
- 这些传感器可实现实时现场检测,仪器小型化,并减少分析时间和成本.
- 各种传感器设计显示出敏感和选择性PFAS检测的巨大潜力.
结论:
- 替代的传感器方法对于克服传统PFAS分析的局限性至关重要.
- 对于PFAS传感器的现场应用,商业化和更广泛的采用,需要进一步开发.
- 持续的研究将提高环境监测传感器的灵敏度,选择性和稳定性.
相关概念视频
Gas Chromatography: Types of Detectors-II
376
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...
376
High-Performance Liquid Chromatography: Types of Detectors
575
The role of the detectors in High-Performance Liquid Chromatography (HPLC) is to analyze the solutes as they exit from the chromatographic column. The detector recognizes the solute's property and generates corresponding electrical signals, which are converted into a readable graph of the detector's response versus elution time called a chromatogram at the computer. There are several types of HPLC detectors, each with its own advantages and limitations, depending on the analyte...
575


