Phenyl HPLC Analytical 

The Phenyl terminal group bonded phase has sp2 character and is frequently used when the main differences between the analytes involve π-π interactions. However, keep in mind that π-π bonds are quite weak in comparison with hydrogen bonds, van der Waals forces, and electrostatic bonds. If water is in the mobile phase, as it usually is in Reversed Phase mode, the π-π interactions will be very weak by comparison and not contribute much to the separation. In Normal Phase mode, the π-π interactions make a significantly greater contribution to retention so separations designed to exploit the differences between molecules based on π-π interactions will be more significant.

• Aflatoxins from food 
• Caffeine from beverages 
• Flavors 
• Phenols from water 
• Trace elements from water 

Phenyl HPLC Analytical is available in porosities of 100Å, 150Å, 200Å, and 300Å and particle sizes of 2µm, 3µm, 5µm, and 10µm.

Phenyl HPLC Analytical is manufactured on Sorbtech’s Premium Pure^TM Spherical Silica Gel which boasts very narrow pore and particle distributions, ensuring optimal selectivity, capacity, efficiency, low operating pressure, shorter processing time; and are, therefore, the best balance between high performance and value.

Premium Pure Spherical Silica Gel is manufactured to a very high chemical purity standard (>99.99% SiO₂). Organics and trace metals content are controlled within stringent limits. Each production batch has undergone extensive quality control testing to ensure reliable lot-to-lot performance. This rigid control of chemical purity, surface area and pore size, ensure our silica will yield reproducible separation results and allow for direct scale-up without requiring time-consuming method redevelopment.

Our spherical silicas are mechanically robust and can, therefore, be repacked multiple times in either analytical or preparative scale columns.