Produced for stability across temperature-sensitive applications, pre-column systems like the Hplc Guard Columns (Analytical) Nucleodur ® C 18 Isis, 1.8 μm, 4 x 3 mm, serve as essential protective measures within liquid chromatography (LC, HPLC). These short columns, featuring fully porous particles (FPP), nonpolar crosslinked polymeric octadecyl (C 18, ODS) modification, and high steric selectivity, are strategically positioned between the injector and the HPLC column. By doing so, they safeguard the primary column from potential contaminants, extending its lifespan and ensuring optimal performance. Key attributes include a pore size of 110 Å, pressure stability up to 800 bar, and compatibility with acetonitrile-water eluents. Explore

• Category: Pre-column systems for HPLC
• Particle type: Fully porous particles (FPP)
• Pore volume: 0.9 ml/g
• Column length: 4 mm
• Endcapped: yes
• Particle size: 1.8 µm
• Separation principle: Reversed phase (RP)
• Specific surface according to BET: 340 m²/g
• Pressure stability: 800 bar
• Pore size: 110 Å
• L x Ø internal (column): 4 x 3 mm
• Eluent in column: Acetonitrile - Water
• Column inner diameter: 3 mm
• pH stability: 1,0-10,0
• Carbon content: 20 %
• Surface chemistry: Nonpolar crosslinked polymeric octadecyl (C 18 , ODS) modification, High steric selectivity