Qualitas

QUALITAS

Qualitas has found a place as one of the best reversed phase columns because it provides a measurable improvement over many HPLC columns for two important chromatographic properties: resolution and peak shape. The high efficiencies and bonded phase surface coverage provide for sharp peaks. The result:

  • Free exposed silanols virtually eliminated by complete bonding and end-capping.
  • Sharp peak shape for good method sensitivity.
  • pH stable from 1.5 to 10.0 for over 1,000 hours.

Features

  • Porosity-Surface Enhanced Accessibility.
  • Ultrahigh Purity BDS Range.
  • Batch to Batch Reproducibility.
  • Individual Tested Column.
  • Large surface Area.
  • Better ph Stability.

Specifications

Phase Surface Area m2/g Carbon Load % Pore size Å Ph Range Particle Size μ Length mm ID mm
Qualitas C18 450 18 100 2 to 10 3 & 5 250/200/150/100/50/40/30 4.6/4.0/3.0/2.1
Qualitas C8 320 12 120 2 to 8 3 & 5 250/200/150/100/50/40/30 4.6/4.0/3.0/2.1

Specification of Qualitas C18

  • Ultra High Purity silica with Metal content (AL, FE, Ti, Zv) < 1ppm.
  • High surface area > 450 mg.
  • High loadability & Surface Enhanced Accessibility.
  • High PH Stability ( 2 to 10).
  • Narrow pore size distribution.
  • Superior performance for both hydrophilic and hydrophobic compounds (100% aqueous).
  • Low levels of silanol activity due to proprietary endcapping technology.
  • Longer life time of the column due to dense bonding and double endcapping.

Application

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