Arion Up Close

Explore new line of ARION® and ASTRA® HPLC columns

As ARION® is one of the latest objects found in the space, so it also is the latest workhorse for your application. Explore our new line of HPLC columns ARION®. What innovations does this column bring to you?

  • Strict quality control of alkaline and heavy metal content during the silica gel production process
  • Narrow particle size and pore size distribution
  • Unique production process ensuring high lot-to-lot reproducibility
  • Good stability at higher temperatures

 

ARION® Silicagel

arion up close 1

 

Particle size 5 μm 2.2 μm
Metal content <10 ppm <10 ppm
Temperature stability 100 °C* 100 °C*
Mean particle diameter 5.3±0.9 μm 2.5±0.5 μm
Proximity to the shape of Circle 0.96±0.04 0.97±0.03

* Depends on mobile phase used and silica bonding

 

 

ARION® phases Particle size (µm) Pore size (Å) Surface area (m2/g) Carbon load pH stability Endcapping 100% aqueous mobile phase USP code
C18 Plus 1.7, 2.2, 3, 5, 10, 15 100 420 18 % 1 to 10  Multi-step × L1
C18 Polar 2.2, 3, 5, 10, 15 120 325 16 % 1.5 to 7  Multi-step yes L1
C8 3, 5  120 325  11 % 2.0 to 7  Single-step   × L7
Phenyl-Butyl 2.2, 3, 5  100 300  12 %  1.5 to 7.5 Single-step   × L11
NH2 2.2, 3, 5  120 325  5 %  2.0 to 6.5 Proprietary   × L8
CN 3, 5, 10  120 325 8 %  2.0 to 7  Single-step  × L10 
HILIC Plus 2.2, 3, 5  100 420  –  1.5 to 7 Proprietary   yes L3
Si 2.2, 3, 5, 10  100 420  –  1.5 to 7  × L3

 

What does ARION quality look like?

ARION® particles have a very tight distribution and the highest proximity to the shape of a spherical particle (c=0,9618 ± 0,0353). This ensures high separation power and separation reproducibility.

arion up close 2a arion up close 2a arion up close 2a arion up close 2a
ARION® Competitor L Competitor X Competitor E

 SEM HV analysis 20.0 kV, view field 30 μm (by independent laboratory)

The ARION® media does not include broken or “potato-shaped” particles. The silica spherical shape is unique; both surface uniformity and surface smoothness enable better packing into HPLC columns and therefore paramount chromatography resolution and reproducibility.

 

The 5-micron electron microscope field clearly shows the highest quality of ARION® particles.

arion up close 2a arion up close 2a
ARION® Competitor L
arion up close 2a arion up close 2a
Competitor X Competitor E

 

Main particle characteristics:

  • The highest proximity to a circle
  • Unique surface smoothness shown on pictures above
  • Tight particle size distribution
  • No broken particles
  • No presence of clustered particles
  • No “Moon craters or mountains”

 

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