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Ion-exchange resin beads. An ion-exchange resin or ion-exchange polymer is a resin or polymer that acts as a medium for ion exchange, that is also known as an ionex. [1] It is an insoluble matrix (or support structure) normally in the form of small (0.25–1.43 mm radius) microbeads, usually white or yellowish, fabricated from an organic polymer substrate.
Ion-exchange resin beads Ion-exchange column used for protein purification. Ion exchange is a reversible interchange of one species of ion present in an insoluble solid with another of like charge present in a solution surrounding the solid. Ion exchange is used in softening or demineralizing of water, purification of chemicals, and separation ...
Schematic structure of DEAE-C: positively charged diethylaminoethanol groups can bind negative ions. Diethylaminoethyl cellulose (DEAE-C) is a positively charged resin used in ion-exchange chromatography, a type of column chromatography, for the separation and purification of proteins and nucleic acids.
Ion exchange resins, in the form of beads, are a functional component of domestic water softening units. Conventional water-softening appliances intended for household use depend on an ion-exchange resin in which "hardness ions"—mainly Ca 2+ and Mg 2+ —are exchanged for sodium ions. [7]
Download as PDF; Printable version; ... Amberlite quaternary ammonium resin. Amberlite is the tradename of a range of ion-exchange resins. External links
Ion-exchange resin, an anion exchange resin fiber used in the ion exchange process; IONosphere-map EXchange format (IONEX), an extension of the RINEX standard designed specifically for the ionosphere; Ionex, an electric vehicle ecosystem created by Taiwanese manufacturer Kymco
An ion-exchange membrane is a semi-permeable membrane that transports certain dissolved ions, while blocking other ions or neutral molecules. [1] Ion-exchange membranes are therefore electrically conductive. They are often used in desalination and chemical recovery applications, moving ions from one solution to another with little passage of ...
Chelex resin is often used for DNA extraction in preparation for polymerase chain reaction by binding to cations including Mg 2+, which is an essential cofactor for DNases. Chelex protects the sample from DNases that might remain active after the boiling and could subsequently degrade the DNA, rendering it unsuitable for PCR.