C18 Alkaline HPLC Column

Flow Rate: 1.0 mL/min
Detector: 225nm
Temperature: 30°C
Injection Volume: 20μL

Availability: In Stock


Description of Alkaline C18 Silica Gel HPLC Column

The C18 alkaline column is a new generation of different selective C18 silica gel HPLC column developed by Hawach. It has a hydrophilic group embedded in it to make it hydrophilic. The hydrophilic group replaces a large amount of silicon.

This HPLC column is widely used for basic compounds. The alcohol-based site can effectively prevent the interaction between the alkaloid and the silanol group, and the alkaline substance has a good peak shape.

Characteristics of Alkaline C18 HPLC Column

  • Octadecylsilyl silica gel HPLC column
  • Relatively weaker polarity than the C8 HPLC column
  • The peak shape of the alkaline substance is better, and the material having a poor peak shape on the conventional double-sealed C18 has a better peak shape;
  • The rapid separation of similar samples by the mobile phase is hydrophilic, and the mobile phase of the high water ratio can be used, which is extremely stable.


  • Bonded phase: C18 (USP L1)
  • Particle size: 3μm, 5μm
  • Aperture: 120Å
  • Specific surface area: 320m²/g (120Å)
  • Carbon loading: 12% (120Å)
  • Sealing: Double tailing
  • pH stability: 1.5-10.0

Technical Data

Bonded PhaseUSP NoParticle size (μm)Pore sizeSurface Area (m²/g)Carbon
pH RangeEnd-capped
C18-Alkaline L13um, 5um 10um 120Å 32012%1.5-10No

Ordering Information

Item NoDescriptionPackage (pcs/pk)
SLHC18AL546150C18-Alkaline, 5μm, 120Å, 4.6x150mm1
SLHC18AL546250C18-Alkaline, 5μm, 120Å, 4.6x250mm1
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