PBA is a unique sorbent consisting of a phenylboronic acid covalently linked to a silica gel surface. Covalent processes result in a higher retention to the sorbent surface than other mechanisms, resulting in superior clean-up. The boronate group has a high specificity for cis-diol containing compounds such as catechols, nucleic acids, low molecular weight proteins and carbohydrates.

• High specificity for cis-diol compounds
• Very effective in separating DNA and RNA

Bond Elut™ PBA can also be used to retain oligomeric materials such as polyethylene glycols (PEGs) from a variety of aqueous or biological matrices.