SunBridge C18- Ultra Hybrid C18

Chromanik SunBridge C18: Advanced Stability for High-Performance Separations

The Chromanik SunBridge C18 sets a new standard for hybrid ethylene cross-linked silica gel columns. Its innovative design introduces ethylene chains directly into the silica skeleton, delivering exceptional stability under alkaline conditions.

Key Benefits:

• Outstanding Alkali Stability: SunBridge resists silica dissolution and maintains column performance even at pH 11.5, ensuring consistent results with no loss in theoretical plates.
• Enhanced End-Capping Technology: The bidentate end-capping has a higher bond density than traditional TMS (trimethylchlorosilane), increasing hydrophobicity and minimizing alkyl group hydrolysis for prolonged durability.
• Superior Peak Shape: Achieve sharper peaks with less tailing for challenging analytes, including metal-chelating compounds (e.g., oxine) and basic compounds (e.g., nortriptyline).

Competitive Edge:

Compared to hybrid columns like the Waters XBridge BEH, the SunBridge C18 offers equivalent stability under high-pH conditions, with improved peak symmetry and resolution for demanding applications.

Comparison of peaks for pyridine, oxine, and nortriptyline

Evaluation of hydrogen bonding, hydrophobicity and steric selectivity

Comparison of Stability under pH 11.5 condition (relative theoretical plate and relative retention