Produced for stability across temperature-sensitive applications, pre-column systems like the Hplc Guard Columns (Analytical) Nucleodur ® C 18 Gravity, 3 μm, 4 x 2 mm, serve as essential components in liquid chromatography (LC, HPLC). Their primary function is to protect the main HPLC column from contaminants, extending its lifespan. Featuring fully porous particles (FPP), these guard columns have a pore size of 110 Å, a specific surface area of 340 m²/g, and a particle size of 3 μm. They also boast a balanced ratio of propylphenyl and C 18 ligands on their bifunctional reversed phase (RP) surface, ensuring optimal separation performance when used with acetonitrile-water eluents. With a

• Category: Pre-column systems for HPLC
• Eluent in column: Acetonitrile - Water
• Particle size: 3 µm
• Separation principle: Reversed phase (RP)
• Pore volume: 0.9 ml/g
• Column length: 4 mm
• Carbon content: 15 %
• pH stability: 1,0-10,0
• L x Ø internal (column): 4 x 2 mm
• Column inner diameter: 2 mm
• Particle type: Fully porous particles (FPP)
• Surface chemistry: Bifunctional RP phase, balanced ratio of propylphenyl and C 18 ligands
• Pressure stability: 600 bar
• Specific surface according to BET: 340 m²/g
• Pore size: 110 Å
• Endcapped: yes