For analytical and preparative HPLC.

All columns incorporate proprietary bonding chemistry on 5 µm narrow-pore spheroidal silica gel particles with an average pore diameter of 120 Å. These packings are chemically stable from pH 2 to 8.5. They are not damaged by the use of cleaning and antimicrobial agents such as sodium azide, dilute aqueous solutions of trifluoroacetic acid and acetic acid, organic solvents such as methanol and acetonitrile, and concentrated aqueous solutions of salts and urea. Columns have an operating pressure of 1000 to 1500 psi.