Formulated to support synthetic operations, pre-column systems like the Hplc Guard Columns (Analytical) Nucleodur ® Hilic play a crucial role in liquid chromatography (LC, HPLC). With a particle size of 1.8 μm and a pore size of 110 Å, these guard columns offer a specific surface area of 340 m²/g, ensuring efficient filtration and protection of the main HPLC column from contaminants. Featuring hydrophilic interaction chromatography (HILIC), they are designed to operate effectively under conditions of acetonitrile-water eluents and ammonium-sulfonic acid (zwitterionic) modified surfaces. Compatible with a wide pH range of 2.0-8.5 and capable of withstanding pressures up to 800 bar, these guard columns

• Category: Pre-column systems for HPLC
• Particle size: 1.8 µm
• Endcapped: no
• Carbon content: 7 %
• Pressure stability: 800 bar
• Temperature stability: 60 ° C
• Column inner diameter: 3 mm
• Pore size: 110 Å
• Pore volume: 0.9 ml/g
• Specific surface according to BET: 340 m²/g
• Surface chemistry: Ammonium – sulfonic acid (zwitterionic) modification
• L x Ø internal (column): 4 x 3 mm
• pH stability: 2,0-8,5
• Column length: 4 mm
• Separation principle: Hydrophilic Interaction Chromatography (HILIC)
• Particle type: Fully porous particles (FPP)
• Eluent in column: Acetonitrile - Water