Avantor® Ultrasphere® columns are available in variety of phases with 2 range of particle size.

• High reproducibility
• Widely referenced silica
• Optimal surface coverage for long column lifetime
• Narrow particle size distribution for high efficiency and improved resolution

Avantor® Ultrasphere® Octyl (3 µm) is available in both standard analytical column hardware and a high efficiency Ultrasphere-XL High Speed cartridge column design, which includes an integral cartridge column holder assembly.