AX-300  

Weak Anion Exchanger support is a crosslinked polyethyleneimine phase on 6-7µ, 300Å, silica.   Selectivity can be altered by mobile phase composition, and pH affects ionization of both the support and the solute. AX-300 permits analysis of proteins up to molecular weights of 200,000 daltons. AX300 has excellent recoveries and loading capacity.. e.g., 22mg ovalbumin can be loaded onto a 250x4.6 column with no overloading effects.

CM-300 

Weak Cation Exchanger support has a polyamide coating containing carboxymethyl groups and is bonded to a 6-7µ, 300Å, silica. Selectivity can be altered by mobile phase salt composition, and pH affects ionization of both the support and the solute. CM-300 permits analysis of proteins up to molecular weights of 200,000 daltons and exhibits excellent recoveries as well as high loading capacity.

S-300 

Strong Cation Exchanger support has a polyamide coating containing sulfopropyl functional groups, bonded to a 6-7µ, 300Å, silica.   Ionization of the functional groups on this bonded phase is constant above pH 3. S-300 columns are a good choice for the separation of basic proteins.

S-1000  

Strong Cation Exchanger support has a polyamide coating containing sulfopropyl functional groups bonded to a 7µ , 1000Å, silica.   Ionization of just the solute affected by pH above pH3. S-1000 columns are excellent columns for the fast analysis of glycosylated hemoglobin.

Strong Anion Exchanger support has fully quaternized, crosslinked polyethyleneimine phase on 6-7µ, 300Å, silica.  Ionization of this support has no pH dependence. Q-300 columns are excellent columns for the rapid separation of proteins and enzymes.