• Enhanced pH Stability
• Unique Selectivity
• Rapid Equilibration for Gradient Analysis
• Available as either 3 or 5 micron particles

Shimadzu Premier Cyano and Phenyl columns offer an alternative selectivity to conventional C8 and C18 columns. Both phase types are very useful for gradient applications due to their rapid equilibration characteristics. Both phenyl and cyano maintain retention for polar solutes while they decrease the retention of less polar solutes. Premier Cyano is a versatile phase produced from a proprietary bonding process incorporating a cyanopropyl monolayer. This proprietary process makes the Premier Cyano more resistant to degradation from acidic mobile phases than conventional cyano columns. Cyano columns are typically used in applications involving polar pharmaceuticals such as anticonvulsants and antimicrobials.

Premier Phenyl is an alternative to ODS phases and is particularly useful for the analysis of aromatic containing compounds. The unique selectivity for the Premier Phenyl phase is derived from an interaction of the pi-electrons found in the phenyl groups. These pi-electrons can enhance the selectivity of aromatic compounds through an induced polarization of electrons. A unique proprietary bonding process yields a phenyl phase with improved pH stability and increased reliability. Phenyl columns are typically used in applications involving pharmaceuticals such as analgesics and other aromatic compounds.

Cyano
Pore Size = 120A
Surface Area = 350m²/gram
Carbon = 4%

Phenyl
Pore Size = 120A
Surface Area = 350m²/gram
Carbon = 5%