Agilent StableBond SB-C18, 5u, 4.6 x 250mm cart 7995218-585

The Agilent ZORBAX StableBond SB-C18 5 µm, 4.6 x 250 mm cartridge is a reversed-phase HPLC analytical column packing designed for separations using SB-C18 chemistry. The StableBond packing uses bulky, patented nonfunctional silanes that protect the siloxane bond and omits acid-labile endcapping to provide high chemical and temperature stability for low-pH separations. The column is intended for routine HPLC method development and analysis where robust performance at low pH and with common mobile phases is required.

Key Features:

• Phase: SB-C18 (StableBond C18)
• Dimensions: 4.6 mm ID x 250 mm length (cartridge format)
• Particle size: 5 µm (fully porous)
• Pore size: 80 Å
• pH range: 0.8–8
• Pressure rating: 400 bar
• Maximum temperature: 90 °C at pH 1–6 (40 °C at pH 6–8)

Advantages:

• Enhanced chemical stability at low pH due to patented bulky silane chemistry, improving lifetime for acidic mobile phases.
• Suitable for high-temperature operation (up to 90 °C at acidic pH), enabling faster or more efficient separations when specified.
• Compatibility with common mobile phases, including high-aqueous compositions, supporting broad method development needs.
• Improved peak shape for acidic, basic, and neutral analytes through high-purity silica and StableBond surface chemistry.