Designed for professional use, the Hplc Guard Columns (Analytical) Nucleodur ® C 18 Pyramid, 1.8 μm, 4 x 2 mm are essential accessories for protecting your main HPLC column from contamination. With a pore size of 110 Å, a specific surface area of 340 m²/g, and a particle size of 1.8 μm, these fully porous particles (FPP) offer excellent separation performance under reversed phase (RP) conditions. Featuring polar endcapping and a carbon content of 14 %, they exhibit stable pH performance within the range of 1.0-9.0. The columns have an internal dimension of 4 x 2 mm and a pressure stability of up to 900 bar, making them suitable for high-pressure applications. To ensure optimal

• Category: Pre-column systems for HPLC
• L x Ø internal (column): 4 x 2 mm
• Column inner diameter: 2 mm
• Particle type: Fully porous particles (FPP)
• pH stability: 1,0-9,0
• Specific surface according to BET: 340 m²/g
• Column length: 4 mm
• Endcapped: yes
• Pore volume: 0.9 ml/g
• Eluent in column: Acetonitrile - Water
• Separation principle: Reversed phase (RP)
• Pressure stability: 900 bar
• Surface chemistry: Octadecyl (C 18 , ODS) modification, Polar endcapping
• Carbon content: 14 %
• Pore size: 110 Å
• Particle size: 1.8 µm