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関連する概念動画

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

483
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...
483
Supercritical Fluid Chromatography01:18

Supercritical Fluid Chromatography

279
Supercritical fluid chromatography (SFC) provides a beneficial substitute for gas chromatography (GC) and liquid chromatography (LC) for certain samples because it merges the top attributes of both techniques. SFC allows the separation and analysis of compounds that GC or LC does not easily manage. These compounds are traditionally nonvolatile or thermally unstable, making GC unsuitable and lacking functional groups required for HPLC analysis.
SFC utilizes a supercritical fluid mobile phase,...
279
Size-Exclusion Chromatography01:08

Size-Exclusion Chromatography

643
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,...
643
Optimizing Chromatographic Separations01:15

Optimizing Chromatographic Separations

433
Optimizing chromatographic separations is crucial for obtaining clean separations in a minimum amount of time. Optimization is required for several factors, including kinetic effects related to band broadening, plate height, capacity factor, and separation factor.
Band broadening refers to spreading solute bands as they travel through the column. This broadening can impact resolution. Plate height (H) represents the length required for one theoretical plate. A lower plate height corresponds to...
433
Ion Exchange01:17

Ion Exchange

621
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...
621
Affinity Chromatography01:03

Affinity Chromatography

731
Affinity chromatography is a powerful technique extensively utilized for separating and purifying specific biomolecules from complex mixtures. It capitalizes on the highly selective binding between an analyte and its counterpart, such as antibody-antigen interactions. The counterpart is immobilized on the stationary phase, forming an affinity column. The stationary phase typically consists of solid support, such as agarose or porous glass beads, immobilizing the affinity ligand. The mobile...
731

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関連する実験動画

Updated: Jul 18, 2025

Synthesis and Characterization of Supramolecular Colloids
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Synthesis and Characterization of Supramolecular Colloids

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産業 分離 の 課題: 超 分子 化学 は どの よう に 助け に なり ます か

Gengwu Zhang1, Weibin Lin1, Feihe Huang2,3

  • 1Smart Hybrid Materials Laboratory (SHMs), Chemistry Program, Advanced Membranes and Porous Materials Center, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.

Journal of the American Chemical Society
|August 25, 2023
PubMed
まとめ

有機ケージとマクロサイクルは,炭化水素分離のためのエネルギー密集型蒸留の持続可能な代替手段を提供します. これらの高度な材料は 分子を選択的に吸収し より環境にやさしい 化学工業への道を開きます

さらに関連する動画

Spatial Separation of Molecular Conformers and Clusters
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Spatial Separation of Molecular Conformers and Clusters

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Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
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Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

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関連する実験動画

Last Updated: Jul 18, 2025

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

9.8K
Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

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Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
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Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

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科学分野:

  • 材料科学
  • 化学工学
  • 持続可能な化学

背景:

  • 化学産業は,持続可能で環境に優しい慣行への圧力に直面しています.
  • 蒸留などの伝統的な分離方法は エネルギー密集的で より効率的な代替手段が必要である.
  • 先進的な分離技術の開発には,新しい材料が不可欠です.

研究 の 目的:

  • 選択的分子吸収のための多孔な有機ケージとマクロサイクルにおける最近の進歩をレビューする.
  • ホスト-ゲストの相互作用を強調し,選択的な炭化水素分離を可能にします.
  • これらの材料の産業用途の可能性を議論する.

主な方法:

  • 吸収材料として多孔な有機ケージとマクロサイクルに焦点を当てます.
  • 選択的吸収を誘発する宿主-ゲストの相互作用の分析
  • 炭化水素分離のための受容体ベースの吸着材料に関する最近の文献のレビュー.

主要な成果:

  • 多孔な有機ケージとマクロサイクルは,ゲスト分子の選択的吸収を示しています.
  • これらの材料は 分子シート行為を示す.
  • 空洞または機能群を持つ受容体ベースの吸着剤は,標的分子を選択的に捕獲することができます.

結論:

  • 受容器ベースの吸着材料は,持続可能な炭化水素分離に希望を示しています.
  • 分子レベルの相互作用を理解することは 適した分子を設計する上で鍵となるものです
  • 更に発展すれば,吸収物質ベースの分離は,研究室から産業へと移行できる.