Optimized for controlled laboratory processes, pre-column systems like the Hplc Guard Columns (Analytical) Nucleodur ® C 18 Gravity, 5 μm, 4 x 2 mm play a crucial role in protecting your main HPLC column from contamination. Featuring a pore size of 110 Å, a specific surface area of 340 m²/g, and a carbon content of 15 %, these short columns are designed to prevent chemical impurities from reaching the main column, thereby extending its lifespan. With a particle size of 5 μm, fully porous particles (FPP), and a balanced ratio of propylphenyl and C 18 ligands for a bifunctional RP phase, these guard columns ensure efficient separation using acetonitrile-water as eluent, all while maintaining pressure stability up to

• Category: Pre-column systems for HPLC
• Column length: 4 mm
• L x Ø internal (column): 4 x 2 mm
• Particle size: 5 µm
• pH stability: 1,0-10,0
• Endcapped: yes
• Column inner diameter: 2 mm
• Eluent in column: Acetonitrile - Water
• Pore volume: 0.9 ml/g
• Particle type: Fully porous particles (FPP)
• Pore size: 110 Å
• Pressure stability: 600 bar
• Separation principle: Reversed phase (RP)
• Surface chemistry: Bifunctional RP phase, balanced ratio of propylphenyl and C 18 ligands
• Specific surface according to BET: 340 m²/g
• Carbon content: 15 %