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Brownlee SPP C18 Guard Column - 5 mm x 4.6 mm I.D., Pkg. 3

High purity, general purpose C18 phase for reverse phase separations.

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Detail Information

Brownlee SPP (Superficially Porous Particle) C18 guard columns are high purity guard columns that exhibit excellent peak shapes for a wide range of compounds using reverse phase separation. These columns are filled with 2.7 μm superficially porous particles that contain a 1.7 μm solid inner core and a 0.5 μm porous silica outer shell, allowing for a shorter diffusion path and nearly double the efficiency compared to traditional fully porous silica particles. These guard columns can be used to enhance the performance of both traditional HPLC systems and UHPLC systems.

  • Quantity: Package of 3
  • Carbon load: 8%
  • Coverage: 3.5 μmol/m²
  • pH Range: 2.0-9.0
  • Pressure Limit (UHPLC): 9,000 psi (620 bar)
  • Temperature Limit: 30℃
  • USP Code: L1


Inner Diameter 4.6 mm
Length 5.0 mm
Particle Size 2.7 µm
Phase C18
Pore Size 90.0 Å
Product Brand Name Brownlee SPP
Product Group Guard Columns
Technology Type Liquid Chromatography (LC)