Widely applied in chemical workflows, the Hplc Guard Columns (Analytical) Nucleoshell ® RP 18Plus, featuring a 5 µm particle size and a 4 x 2 mm internal dimension, serve as essential pre-column systems for high-performance liquid chromatography (HPLC). These guard columns, constructed with monomeric octadecyl (C18, RP18, ODS) modified core-shell, superficially porous particles (SPP), offer polar selectivity and a specific surface area of 90 m²/g according to BET. With a pH stability range of 2.0-9.0 and pressure stability up to 600 bar, they ensure robust performance while protecting the main HPLC column from contaminants. Ideal for applications utilizing acetonitrile-water eluents,

• Category: Pre-column systems for HPLC
• Endcapped: yes
• Surface chemistry: Monomeric octadecyl (C 18 , RP 18 , ODS) modification, Polar selectivity
• Separation principle: Reversed phase (RP)
• Particle size: 5 µm
• pH stability: 2,0-9,0
• L x Ø internal (column): 4 x 2 mm
• Pressure stability: 600 bar
• Specific surface according to BET: 90 m²/g
• Carbon content: 5.7 %
• Pore size: 90 Å
• Eluent in column: Acetonitrile - Water
• Particle type: Core-shell, superficially porous particles (SPP)
• Column inner diameter: 2 mm
• Column length: 4 mm