Bonna-Agela' s Durashell column has a pH range of 1.5 to 12.0.

• Metal Impurity: <30 ppm
• Pore Size: 100 Å
• Specific Surface Area: 380 m²/g

Durashell C18 HPLC Columns offer a wide pH range (1.5 to 12.0) and minimal silanol activity. They provide better efficiency than many other high pH compatible columns. They also offer a high loading capacity for basic compounds for preparative applications.

Differing from comparable products that can also be used at high pH, Durashell' s stationary phase is made with a dendrimer technology followed by molecular modifications. Bonna-Agela's technology produces a strong hydrophobic protection layer over the silica surface allowing the columns to be used at extremely high and low pH.

This technology also reduces excessive hydrophobic interactions between the stationary phase and the analytes, and yet maintains excellent interfacial kinetics for high efficiency. A line of stationary phases includes C18, C8, Phenyl, and NH₂.