Designed for professional use, the Hplc Guard Columns (Analytical) Nucleodur ® Sioh, 5 μm are essential components in liquid chromatography (LC, HPLC) systems. These pre-column systems protect the main column from contaminants, extending its lifespan. With a particle size of 5 μm and a pore size of 110 Å, they offer a specific surface area of 340 m²/g as per BET. The unmodified high purity silica gel (SiOH) surface chemistry ensures multi-mode (NP and RP) and normal phase (NP) separations. Operating at temperatures up to 60°C and pressures up to 600 bar, these guard columns are compatible with a wide range of eluents, including n-heptane. Their pH stability ranges from

• Category: Pre-column systems for HPLC
• Surface chemistry: Unmodified high purity silica gel (SiOH)
• Pore volume: 0.9 ml/g
• L x Ø internal (column): 4 x 3 mm
• Carbon content: 0 %
• Temperature stability: 60 ° C
• Pressure stability: 600 bar
• Column length: 4 mm
• pH stability: 2,0-8,0
• Separation principle: Multi-mode (NP and RP), Normal phase (NP)
• Endcapped: no
• Eluent in column: n -Heptane
• Specific surface according to BET: 340 m²/g
• Particle size: 5 µm
• Particle type: Fully porous particles (FPP)
• Pore size: 110 Å
• Column inner diameter: 3 mm