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相关概念视频

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Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...
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Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies
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在半导体制造废水中选择PFAS分析方法的实用指南

Boris Droz1, Christopher G Heron2, Mitchell L Kim-Fu3

  • 1Department of Biological and Ecological Engineering, Oregon State University, Corvallis, Oregon 97331, United States.

ACS measurement science au
|August 27, 2025
PubMed
概括

本综述指导选择半导体废水中的基和多基物质 (PFAS) 的分析方法. 它将PFAS结构,特性和适合的检测和监测方法联系起来.

关键词:
气色谱质谱 (GCMS)高分辨率质谱 (HRMS)核磁共振 (NMR) 是一个和多基物质 (PFAS)半导体总有机超短链PFAS废水

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科学领域:

  • 环境化学
  • 分析化学

背景情况:

  • 和多基物质 (PFAS) 是工业废水中普遍存在的污染物.
  • 了解PFAS结构与属性关系对于有效分析至关重要.

研究的目的:

  • 提供有关分析方法选择的PFAS命名,结构和属性的概述.
  • 在处理的半导体废水中指导PFAS分析方法的选择.

主要方法:

  • 对将PFAS结构与物理化学性质联系起来的基本概念进行审查.
  • 对目标和超短PFAS进行标准化分析方法 (EPA,ASTM) 的比较.
  • 对挥发性,非挥发性,可疑性和非目标性PFAS的方法的评估.
  • 评估非特异性方法 (总,前体测定) 和先进的检测技术.

主要成果:

  • PFAS的特性显著影响分析方法的适用性.
  • 根据半导体废水中发现的特定PFAS结构提供了方法选择的指导表.
  • 目前的样本处理方法,目标PFAS和总相比较.

结论:

  • 对半导体废水中的PFAS进行有效分析需要仔细考虑PFAS的结构和特性.
  • 为了准确评估PFAS,需要采用包括各种分析方法的综合方法.
  • 该审查为选择方法提供了实际指导,并强调了新兴的监测技术.