Industry-news

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  Carbon foam, a new material that simultaneously re

  Carbon foam has a series of excellent properties such as high strength, high thermal conductivity/conductivity, high temperature resistance, acid and alkali resistance, and easy structural control. It is a lightweight thermal management material, as well as a material with thermal conductivity and sound absorption properties. It can be used in the fields of thermal, acoustic, RF/EMI signal manage

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  Excerpt from the Brief History of the Development

  In the development process of chromatography over 100 years, the development of various methods has been uneven. Although LC appeared early, GC was the earliest and most widely used technology in industrial production

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  Progress in High Performance Liquid Chromatography

  At the beginning of the new century, due to the needs of life sciences, new drug development, and environmental sciences, liquid chromatography, microcolumn liquid chromatography, and capillary electrochromatography have received widespread attention. However, for the past 20 years, the column efficiency of commercial HPLC chromatography columns has hovered between 10000 and 30000 pl/elum，to solve

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  Application of Porous Carbon Materials in Biofuel

  BioF theuel cell (BFC) uses natural microorganisms or enzymes as catalysts to catalyze the oxidation-reduction reaction of organics in nature to generate electricity. Compared with traditional fuel cells, biofuel cells use non-toxic and renewable biocatalysts and organic fuels. They have sufficient sources of raw materials, low cost, and can generate electricity under mild conditions. They are cl

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  Carbon nanomaterials have been used as gas solid c

  Since Japanese scholar Sumo Iijima discovered carbon nano-tubes (CNTs) in 1991，This event changed people's previous understanding of the three forms of carbon (diamond, graphite, and amorphous carbon), and led to continuous research on carbon nano-tubes, competing to use this novel material in various fields. In 2004, another interesting carbon substance emerged - graphene (G), CNTs and G are two

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  About highly polar stationary liquids

  The highly polar stationary liquids with the strongest polarity for small molecules is b, b-oxydipropylcyanide, but its temperature resistance is poor, so people studied various high polarity polymers, and polyethylene glycol 20M (i.e. polyethylene glycol with a molecular weight of 20000) was the most commonly used stationary liquids with medium polarity.

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  Siloxanes are currently the mainstay of gas chroma

  Although there are over a thousand types of gas chromatography stationary liquids that have been used and studied to meet the requirements of low column efficiency and high selectivity in packed columns, however, for modern capillary chromatography columns, these stationary liquids are rarely used in combination.

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  Early use of gas chromatography stationary liquids

  In 1950, Martin, the inventor of gas chromatography, used diatomaceous earth (Celite) as a carrier, silicone oil (DC 550) as a stationary liquid, and gas as a mobile phase to separate ammonia, fatty amines, and pyridine homologues. DC 550 (methyl polysiloxane containing 25% phenyl) was originally an industrial high-temperature resistant silicone oil.

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