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Related Concept Videos

Ion-Exchange Chromatography01:09

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Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
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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.
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High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
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The chromatography technique was first invented in 1901 by Michael S. Tswett, a Russian botanist, to separate plant pigments using organic solvents. Further, in 1941, Archer John Porter Martin and R. L. M. Synge modified the technique by packing silica gel into a column. A mixture of amino acids was then separated on the packed column using chloroform and water mixture as the mobile phase. This was the first report on column chromatography. At present, column chromatography is a widely used...
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Types Of Column Chromatography01:29

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The stability and compatibility of column material with samples are crucial for efficient purification in chromatographic techniques. Various operating parameters such as pH, temperature, or solvent affect the packing of the column material, thereby determining the purification efficiency. The choice of column material also plays an essential role in deciding the operating parameters and can be modified based on the proteins that need to be purified.
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Chromatography is a technique used to separate compounds based on differences of partitioning between two phases, the stationary phase and the mobile phase.
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Nanoparticle-based monoliths for chromatographic separations.

Sheng Tang1, Yong Guo, Chunming Xiong

  • 1Key Laboratory of Chemistry of Northwestern Plant Resources, CAS/Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China. sxjiang@lzb.ac.cn liusj@licp.cas.cn.

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Summary
This summary is machine-generated.

Nanoparticle-based monoliths offer high permeability and customizable surfaces for analytical science. This review highlights recent advances in their use for chromatographic separations over the last three years.

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Area of Science:

  • Analytical Chemistry
  • Separation Science
  • Materials Science

Background:

  • Monoliths are a versatile class of materials used in various scientific applications.
  • Nanoparticle-based monoliths represent a novel subclass with unique properties.
  • These materials offer advantages like high permeability and tunable surface chemistry.

Purpose of the Study:

  • To review recent advancements in nanoparticle-based monoliths for chromatography.
  • To highlight key developments in the application of these materials over the past three years.

Main Methods:

  • Literature review focusing on publications from the last three years.
  • Analysis of research trends in nanoparticle-based monoliths for separation science.

Main Results:

  • Nanoparticle-based monoliths show significant promise as substrates in analytical sample preparation.
  • Recent advances have expanded their utility in chromatographic separations.
  • Their high permeability and adaptable surface chemistries are key advantages.

Conclusions:

  • Nanoparticle-based monoliths are an emerging and important class of materials in separation science.
  • Continued research is expected to further enhance their applications in chromatography and beyond.