Produced for stability across temperature-sensitive applications, the Hplc Guard Columns (Analytical) Nucleodur ® C 18 Gravity, 1.8 μm, 4 x 3 mm offer protection for your main HPLC column from contamination. With a pore size of 110 Å and a specific surface area of 340 m²/g, these guard columns effectively filter out chemical impurities before they reach the main column, extending its lifespan. Featuring fully porous particles (FPP) and a base deactivated (BDS), high density octadecyl (C 18, ODS) modification, these guard columns operate using reversed phase (RP) separation principles, ensuring optimal performance in acetonitrile-water eluents within a pH range of 1.0-11.0.

• Category: Pre-column systems for HPLC
• Eluent in column: Acetonitrile - Water
• Column length: 4 mm
• Carbon content: 18 %
• Specific surface according to BET: 340 m²/g
• Particle size: 1.8 µm
• Surface chemistry: Base deactivated (BDS), High density octadecyl (C 18 , ODS) modification
• Particle type: Fully porous particles (FPP)
• L x Ø internal (column): 4 x 3 mm
• Pore volume: 0.9 ml/g
• Separation principle: Reversed phase (RP)
• Endcapped: yes
• Pore size: 110 Å
• pH stability: 1,0-11,0
• Column inner diameter: 3 mm