Astra C18-HE HPLC column 5.0 µm 250 mm × 4.6 mm

HPLC column developed in the Czech Republic.

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Manufacturer
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Part number
AST5732LM46

HPLC column developed in the Czech Republic. HPLC column particles are continuously analyzed by SEM.
The column is suitable for analytical separations.

Main particle characteristics:

  • Close proximity to a sphere.
  • Highly effective endcapping.
  • No broken particles.
  • Robustness to high pressures.
  • Lot-to-lot reproducibility.
  • Unique modern embedded phases.

Column hardware:

  • Electropolished with very low Ra reduces wall effect.

Silicagel specification

 Particle size 5 µm  3 µm
 Metal content  <10 ppm   <10 ppm
 Mean particle diameter  4.6 ± 1.2 µm  3.0 ± 0.7 µm
 Proximity to the shape of sphere  0.97 ± 0.04  0.97 ± 0.03

Phase specification

 Phase

Particle size (µm)

Pore size (Å) Surface area (m2/g)  Carbon load pH stability Endcapping 100% aqueous mobile phase USP code
C18-HE  3; 5 100 330 17 % 2 to 9 High No L1
 C18-AQ  3; 5 100 330 13 % 2 to 9 Mixed Yes L1
DM  3; 5 100 330 12 % 2 to 9 High No -