Compounds are retained on hydrophilic sorbents through polar interactions including hydrogen bonding, pi-pi or dipole-dipole interaction. These types of interactions occur when a distribution of electrons between individual atoms in functional groups is unequal, causing negative and positive polarity. Compounds typically extracted on a hydrophilic column include analytes which have polar groups, including amines, hydroxyls and carbonyls. Elution is performed by strong polar solvents.
Sorbent Specifications:
Characteristic: Cation Exchange Phase
Organic Loading = 7.5%
Average Pore Size = 60Å
Surface Area = 500 m²/g
Pore Volume = 0.77 cm³/g
Anion Exchange = 0.150 meq/g
Cation Exchange = 0.100 meq/g
Support = Silica
Sorbent = Triacetic acid
Application: Chelator for metal ions. i.e. tin, palladium, copper, ruthenium, chromium, nickel
UCT Food Safety & Environmental Product Catalog 2017
