2025-10-16
What are the development trends of catalysts in catalytic applications for exhaust gas purification?
In catalytic applications for exhaust gas purification, the development trends of catalysts are mainly reflected in the following aspects:
2025-10-16
What are the applications of catalysts in the field of environmental protection?
Catalysts are widely used in the field of environmental protection, with the core function being to reduce pollutant emissions and purify environmental media through catalytic reactions. The following are the main application areas:
2019-04-03
Application of Molecular Sieves in Insulated Glass
Selecting the appropriate type of molecular sieve plays an indispensable role in determining the quality and service life of insulated glass. The invention of sealed insulated glass dates back to 1865; initially, insulated glass was simply constructed without any adsorbents or organic sealants. However, it was only with the global energy shortage and the development of modern organic sealants and adsorbents that demand for insulated glass experienced tremendous growth. Thanks to its outstanding thermal insulation, soundproofing performance, as well as its bright and aesthetically pleasing characteristics, insulated glass has become increasingly widely used. China began developing insulated glass in 1964, and from its early manual production methods, it has now made significant progress in both quality and output.
How to identify the target protein in gel filtration and molecular sieve chromatography?
Gel filtration separates different substances based on their molecular size and is often used for desalting protein solutions. For protein solutions whose component molecules have known molecular weights, the elution time of the target protein can be estimated by comparing their molecular sizes. However, if the properties of various proteins are unknown, the only option is to collect each protein peak separately and then identify them. So, how can we estimate the elution time of the target protein simply by comparing molecular sizes? Proteins with larger molecular weights cannot enter the pores of the gel and thus have shorter elution times; conversely, proteins with smaller molecular weights can enter the gel pores and have longer elution times. Yet, this relationship is relative—for example, two large protein molecules might both fail to enter the pores at all.
03
2019/04
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