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Astra Si

ASTRA® brand extends new line of the ARION® HPLC columns. What new these columns bring 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

Applications on Astra® HPLC columns are available at APPLICATION LIST

ASTRA® Si Silicagel

Endcapping-
USPCode L3
Mean particle diameter4.6±1.2 μm
Surface area330 m2/g
Carbon load-
Proximity to the shape of Circle0.96±0.04
Temperature stability100 °C
pH stability2.0 to 7 (depends on buffer used) //Note: Temperature stability depends on mobile phase used and silica bonding//
Pore Size 100 A
LC Phases Silica
Particle Type Fully Porous
LC Technique HPLC

Brochures

Other Documents

Product name ID Particle Size LC length Product code
ASTRA® Si HPLC Column, 3.0 µm 100 mm × 2.1 mm 2.1 mm 3 µm 100 mm AST-5905-II21
ASTRA® Si HPLC Column, 3.0 µm 150 mm × 2.1 mm 2.1 mm 3 µm 150 mm AST-5905-IK21
ASTRA® Si HPLC Column, 3.0 µm 150 mm x 3.0 mm 3 mm 3 µm 150 mm AST-5905-IK30
ASTRA® Si HPLC Column, 3.0 µm 50 mm × 2.1 mm 2.1 mm 3 µm 50 mm AST-5905-IG21
ASTRA® Si HPLC Column, 5,0 µm 150 mm × 4,6 mm 4.6 mm 5 µm AST-5905-LK46
ASTRA® Si HPLC Column, 5,0 µm 250 mm × 4,0 mm 4 mm 5 µm 250 mm AST-5905-LM40
ASTRA® Si HPLC Column, 5,0 µm 250 mm × 4,6 mm 4.6 mm 5 µm 250 mm AST-5905-LM46
ASTRA® Si HPLC Column, 5,0 µm 50 mm x 3,0 mm 3 mm 5 µm 50 mm AST-5905-LG30
ASTRA® Si HPLC Column, 5.0 µm 200 mm × 4.6 mm 4.6 mm 5 µm 200 mm AST-5905-LL46

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