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相关概念视频

Ion Exchange01:17

Ion Exchange

622
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
622
Size-Exclusion Chromatography01:08

Size-Exclusion Chromatography

646
In size-exclusion chromatography (SEC), also known as molecular-exclusion or gel-permeation chromatography, molecules are separated based on their sizes. This technique is important for separating large molecules such as polymers and biomolecules. The two classes of micron-sized stationary phases encountered in SEC are silica particles and cross-linked polymer resin beads. Both materials are porous, but their pore sizes vary significantly.
Silica particles offer advantages such as rigidity,...
646

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Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
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泡嵌聚合物单体:用于固态提取双醇的多功能材料.

Natalia Morales1, Stuart C Thickett2, Fernando Maya1

  • 1Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania, Australia.

Journal of separation science
|August 2, 2023
PubMed
概括

海绵嵌入的聚合物单体为双提取提供了高效的样品制备. 与这些坚固材料的状混合显著提高了回收,减少了时间,展示了它们的多功能性.

关键词:
具有内分泌干扰的类.胺甲海绵是甲甲的海绵.聚合物单体的聚合物单体.单个交叉连接器固体阶段提取的方法

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科学领域:

  • 材料科学 材料科学 材料科学
  • 分析化学 分析化学
  • 环境科学 环境科学

背景情况:

  • 聚合物单体对于样品制备具有优势,因为它们具有多孔性,pH稳定性和易于制造.
  • 胺-甲泡作为有效的支持,用于创建坚固的和聚合物单体.

研究的目的:

  • 开发和评估用于样品制备的海绵嵌入的二维尼尔二烯聚合物单体.
  • 评估从水溶液中提取内分泌干扰双的提取性能.
  • 调查不同提取方式和单体重塑对效率的影响.

主要方法:

  • 用50:50的交叉连接器/原比准备了divinylbenzene单体,并嵌入了胺-甲海绵中.
  • 提取效率在旋混合,磁和轨道震动之间进行了比较.
  • 测试了单体石的坚固性,通过将较大的立方体重塑成较小的碎片来评估提取增强.

主要成果:

  • 在海绵嵌的单体岩石中,表面积超过400 m2/g.
  • 旋转混合实现了相似的双回收 (39%-81%) 在显著更短的时间 (30分钟对2小时).
  • 由于接触面积的增大,重塑单体的提取效率提高了16% - 21%.

结论:

  • 泡嵌聚合物单体是强大的和多功能材料,用于高效的样品制备.
  • 旋混合是一种有效的取模式,为这些单体提供快速的双回收.
  • 重塑单体石的能力进一步提高了分析物提取能力,突出了它们的适应性.