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Brownlee SPP 2.7 µm RP-Amide 3.0 x 30 mm

Excellent phase for significantly increasing the retention and selectivity of acids, for symmetrical peak shapes of bases, zwitterions and other polar compounds. Base-deactivated phase with a polar group within the alkyl bonded phase. Provides unique selectivity and a high level of base deactivation while reducing or eliminating the need for mobile phase additives.

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Detail Information

  • Solid inner core, porous silica outer shell, shorter diffusion path
  • Very high efficiencies at moderate back pressures  
  • Nearly twice the efficiency of 3-µm particle columns
  • As robust as columns packed with 5-µm particles because columns use 2-µm frits
  • Can exceed performance of sub-2-µm particle size columns on most standard 6000 psi HPLC systems
  • Can be used on UHPLC system at pressures up to 9000 psi Longer columns can be used for very high column efficiencies on UHPLC systems
  • Optimization kits available for Series 200 and Flexar LC systems to increase application efficiencies 


Inner Diameter 3.0 mm
Length 30.0 mm
Particle Size 2.7 µm
Phase RP-Amide