Ultra IBD columns assist in deactivating surface silanols, and help to provide separation selectivities for acids, bases, zwitterions, and other polar compounds.

• Unique selectivity
• High level of base deactivation
• Without endcap

Intrinsically base-deactivated (IBD) phase columns contain a polar group within, or intrinsic to, the hydrocarbon-bonded phase. This results in unique selectivity and a high level of base deactivation, while reducing or eliminating the need for mobile phase additives.