ASTRA® C18-HE HPLC column, 3,0 µm 50 mm × 2,1 mm

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The ASTRA brand extends new line of the ARION® HPLC columns. What new bring this column to you?

  • Strict quality control of alkaline and heave metals content during silica gel production process (<10 ppm)
  • Narrow particle size and pore volume/size distribution
  • Unique production process ensuring high lot-to-lot reproducibility
  • High end-capping in gaseous phase
Main particle characteristics:
  • High proximity to the circle
  • Surface smoothness
  • Tight particle size distribution
  • No broken particles
  • No presence of clustered particles
  • No “Moon craters or mountains”

Aplications on Astra® HPLC columns are available at ARIONCHROMATOG­RAPHY

ASTRA® C18-HE Silicagel
Endcapping in gaseous phase
USP Code L1
Mean particle diameter 3.0±0.7 μm
Surface area 340 m2/g
Carbon load 17%
Proximity to the shape of Circle 0.96±0.04
Temperature stability 100 °C
pH stability 2.0 to 9 (depends on buffer used)

Note: Temperature stability depends on mobile phase used and silica bonding

Additional information

ID of column (mm)

Particle Size (µm)

Pore Size (A)

LC Phases


LC column length (mm)

Particle Type

LC technique

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