Genesis® C18 Reversed Phase
- Excellent peak symmetry
- Exceptional stability from pH 1 to 10
- Reduced need for mobile-phase modifiers
- Long column life
Genesis® C18 bonding is monomeric. A unique proprietary end-capping reagent, which is less prone to acid hydrolysis than trimethylsilane, provides freedom from residual silanols and enhanced stability under low-pH operating conditions.
Genesis® C18 columns also exhibit superior stability at alkaline pH. The permissible operating range is pH 1–10.
Genesis® AQ Reversed Phase
- Designed for separating hydrophilic and polar compounds
- Stable retention times in 100% aqueous mobile phases
- Rapid equilibration
- Unique reversed-phase selectivity
The Genesis® AQ adsorbent employs an optimum ratio of
C18, short (non-TMS) chains, and polar surface groups
bonded to high-purity 120Å silica to allow rapid equilibration and provide consistent, reproducible chromatography with stable retention times in 100% aqueous eluents.
Retention on Genesis® AQ is greater for polar analytes but lower for non-polar compounds compared to Genesis® C18. Uracil, which is typically an unretained peak on C18 columns, is well retained on the Genesis® AQ adsorbent. Acids and bases exhibit good peak shapes. Although Genesis® AQ excels with water-rich mobile phases, it can also be used in gradient and isocratic modes with a full spectrum of mobile phases.
Genesis® C8(EC) Reversed Phase
- Excellent peak symmetry
- Exceptional stability from pH 1 to 10
- Reduced need for mobile-phase modifiers
- Long column life
C8(EC) is double-bonded before fully endcapped using a unique proprietary end-capping reagent. It is less prone to acid hydrolysis than trimethylsilane, which provides freedom from residual silanols and enhanced stability under low-pH operating conditions. The bonding is monomeric.
Genesis® C8(EC) columns exhibit superior stability at alkaline pH. Genesis® C8 Reversed Phase
- Non-endcapped
- Suitable for lower pH separations
- Genesis® C8 bonding is monomeric. They are suitable for separations under lower pH conditions and may offer selectivity advantages for some samples.
Genesis® Phenyl
- Unique reversed-phase chemistry
- Improve the chromatography of polar aromatic, fatty acids, and basic pharmaceuticals
- Genesis® Phenyl columns provide impressive peak symmetry for both acidic and basic compounds.
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