Ultisil® AQ-C18

-The most widely used column in food industry

Ultisil® AQ-C18 columns are designed to have extended retention and selectivity for hydrophilic and polar compounds,
which are poorly or not at all retained on other phases. A proprietary bonding chemistry, Ultisil® AQ-C18 avoids so-called “phase collapse”, even when 100% water is used, a phenomenon that conventional C18 columns typically exhibit at high water content in the mobile phase. Ultisil® AQ-C18 phase is fully end-capped to ensure the best peak shapes of polar and basic compounds and longer lifetime. Typical applications are separations of water soluble compounds that cannot be retained on traditional C18 phase. Examples include biomolecules, metabolites, and pharmaceutical degradants such as organic acids, water-soluble vitamins, oligosaccharides, amino acids, and small peptides and nucleotides

Features

• No phase collapse, suitable for high aqueous mobile phase.
• Less retentive than XB-C18 for non-polar compounds.
• Increased retention for polar and water-soluble compounds.

Ultisil® AQ-C18

Structural Formula
pH Range	2.0-8.0
Particle Size	3μm, 5μm, 10μm
Surface Area(m2/g)	320(120Å)
Carbon Loading(%)	12(120Å)
USP List	L1/L96
Endcapped	Yes

Phase collapse research