Chromalite AD1 are  low porous, non functionalised  highly crosslinked polymers in very small and uniform particle size. Chromalite AD1 products are ideal for high pressure reverse phase liquid chromatography (RP-HPLC).  High bead integrity, excellent chemical and physical stability, very low extractibles content, resistance to changes in chemical conditions,good kinetics and excellent selectivity make these products especially suitable for high purity adsorption and chromatographic separations. This series of products are manufactured to a controlled particle size specification for efficient chromatographic column packing. The spherical beads show exceptional batch to batch consistency to enable scale up from laboratory tests, through pilot plant to full plant operation.

Principal Applications

  • Analytical HPLC
  • Bio-separation


  • Highly hydrophobic adsorbent with very high surface area
  • High chemical stability (tolerates all common organic solvents)
  • Regenerable using standard procedures
  • Narrow particle size range

Regulatory Approvals

  • Compliant with FDA regulation 21 CFR 173.65
  • Compliant with ResAP(2004) 3
  • Halal
  • Kosher
  • TSE/BSE/GMO free

Typical Packaging

  • 10 g
  • 50g
  • 100g

Typical Physical & Chemical Characteristics:

Polymer Structure Macroporous polystyrene highly crosslinked with divinylbenzene
Appearance Uniform spherical beads
Functional Group None
Ionic Form None
Mean Diameter 4 - 6 µm
Particle size (90% in Range) 3 - 7 µm
Moisture Retention < 5%
Porosity, Median Pore Diameter 100 - 200 (BET) Å
Surface Area (min.) >500 (BET) m²/g
pH limit stability 1 - 14
Supplied as Dry
Uniformity Coefficient (max.) < 1.15
Total moisture 0 - 5 %
Optimal storage condition 2 - 20 °C
Expiry date (from date of manufacture) 5 years