Produced for stability across temperature-sensitive applications, the Hplc Guard Columns (Analytical) Nucleodur ® Polartec, 3 μm, 4 x 2 mm, serve as essential pre-column systems within high-performance liquid chromatography (HPLC). Their primary function lies in protecting the main HPLC column from contaminants, extending its lifespan. With a particle size of 3 μm and a pore size of 110 Å, these fully porous particles (FPP) offer optimal separation performance through reversed-phase (RP) principles. The octadecyl phase (C18, ODS) modification, featuring embedded polar groups (PEG), ensures compatibility with acetonitrile-water eluents while maintaining a pressure stability of up to 600 bar. Additionally, their specific surface area, as per BET, amounts

• Category: Pre-column systems for HPLC
• Pressure stability: 600 bar
• pH stability: 1,0-9,0
• Column inner diameter: 2 mm
• Endcapped: yes
• Column length: 4 mm
• Carbon content: 17 %
• Pore size: 110 Å
• L x Ø internal (column): 4 x 2 mm
• Particle size: 3 µm
• Specific surface according to BET: 340 m²/g
• Particle type: Fully porous particles (FPP)
• Surface chemistry: Octadecyl phase (C 18 , ODS) modification, with embedded polar group (PEG)
• Separation principle: Reversed phase (RP)
• Eluent in column: Acetonitrile - Water
• Pore volume: 0.9 ml/g