Developed to align with modern chemical standards, pre-column systems for HPLC such as the Hplc Guard Columns (Analytical) Nucleodur ® C 18 Gravity, 1.8 μm, 4 x 2 mm, serve as essential components in liquid chromatography (LC, HPLC). These guard columns protect the main HPLC column from contamination by filtering out chemical impurities before they reach the primary column. Featuring 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 pressure stability up to 900 bar and a balanced ratio of propylphenyl and C 18 ligands for optimal separation performance. With a carbon content of 15 %, these

• Category: Pre-column systems for HPLC
• Pore size: 110 Å
• Column inner diameter: 2 mm
• Particle size: 1.8 µm
• Particle type: Fully porous particles (FPP)
• Pore volume: 0.9 ml/g
• Surface chemistry: Bifunctional RP phase, balanced ratio of propylphenyl and C 18 ligands
• L x Ø internal (column): 4 x 2 mm
• Separation principle: Reversed phase (RP)
• Eluent in column: Acetonitrile - Water
• Carbon content: 15 %
• Endcapped: yes
• Specific surface according to BET: 340 m²/g
• pH stability: 1,0-10,0
• Column length: 4 mm
• Pressure stability: 900 bar