不对称的流场流量分化与ICP-MS相结合,用于从宏分子到纳米组装形式的环境中微金属物种的表征:量化当前的挑战
Isabelle A M Worms1, Vera I Slaveykova2
1Environmental Biogeochemistry and Ecotoxicology, Department F.-A. Forel for Environmental and Aquatic Sciences, School of Earth and Environmental Sciences, Faculty of Science & Institute for Environmental Sciences, University of Geneva, 66, boulevard Carl-Vogt, CH-1211 Genève 4, Switzerland. isabelle.worms@unige.ch.
Chimia
|December 9, 2023
概括
与ICP-MS相结合的不对称流域流量分成是分析复杂样品中的微量金属的关键. 为了准确量化无机物种和金属纳米粒子,需要进一步的标准化.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 不对称的流场流量分成法 (AF4) 通过水力动力学行为将宏分子和纳米粒子分离.
- 像吸附和聚合这样的复杂相互作用会影响这些系统中的微量金属 (TM) 的命运.
- AF4与感应合等离子体质谱学 (ICP-MS) 结合,可量化环境和生物样本中的含金属物种.
研究的目的:
- 审查AF4-ICP-MS用于微量金属分析的应用.
- 突出了对无机物种量化标准化程序和认证参考材料的需求.
- 讨论用于定量测量验证的关键ICP-MS仪器终点.
主要方法:
- 不对称的流量场流量分成 (AF4) 用于基于尺寸的分离.
- 感应合等离子体质谱 (ICP-MS) 用于敏感的元素检测.
- 将AF4与ICP-MS和其他在线检测器结合起来,以进行全面的分析.
主要成果:
- AF4-ICP-MS使复杂矩阵中的微量金属的尺寸组成分析成为可能.
- 将AF4-ICP-MS与其他探测器相结合,可以了解分析剂的来源.
- 该技术对于了解微量金属污染物的行为和金属纳米粒子 (MNP) 至关重要.
结论:
- AF4-ICP-MS是一种用于环境和生物微量金属分析的强大工具.
- 标准化和验证的参考材料对于准确的无机物种量化至关重要.
- 综合检测策略提供了对微量金属和MNP物种和行为的整体视图.
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