The cartridges contain a 10 mg bed of Ludger Electron Interaction Resin (EIR). This unique material contains very flat regions of pi-orbital electrons that interact with hydrophilic organic compounds including glycans.
The resin can capture a wide range of glycans from complex mixtures while salts and certain detergents pass through. The glycans are then eluted from the cartridge using a simple solvent system.
The cartridge housing is constructed of polypropylene and is compatible with many automated sample preparation systems.