Restek Viva Silica Columns USP L3

particle size: 5μm, spherical
pore size: 300Å
pH range: 2.5 to 8
temperature limit: 80°C
Highly base-deactivated wide pore packing that exhibits excellent peak shape for a wide range of compounds in normal phase separations.

Restek has brought the benefits of Raptor columns to those who have made the leap to UHPLC instruments, yet are still looking to boost their efficiencies further. Already sold with 2.7 and 5 µm superficially porous particles (SPP), Raptor columns are now available with 1.8 µm particles specifically for use with UHPLC. Choose from four distinctive Restek phase chemistries: Biphenyl, ARC-18, C18, and FluoroPhenyl.

Raptor 1.8 µm columns are designed and QC tested for maximum lifetime under UHPLC pressures. And, because they are Raptor SPP LC columns, they offer the peak capacity, selectivity, and reproducibility that analysts have learned to depend on from Restek.

• Capable of both reversed-phase and HILIC separations.
• Ideal for increasing sensitivity and selectivity in LC-MS analyses.
• Offers increased retention for charged bases.
• Part of Restek’s Raptor LC column line featuring 1.8 and 5 μm SPP core-shell silica.
• Switch to a Raptor FluoroPhenyl LC column when you need more retention and selectivity for basic and hydrophilic compounds than you can achieve on a C18.

particle size: 1.9μm, 3μm, or 5μm, spherical
pore size: 140Å
endcap: no
pH range: 2.5 to 8
temperature limit: 80°C
Highly base-deactivated spherical silica manufactured by Restek. Useful for normal phase separations. Replaces Hypersil^® BDS and Pinnacle^® Amine.

particle size: 5μm, spherical
pore size: 60Å
endcap: no
pH range: 2.5 to 8
temperature limit: 80°C
Highly retentive phase for normal phase separations. Very high surface area, Type B silica packing. Similar Phase(s):

Maxsil Si

particle size: 3μm or 5μm, spherical
pore size: 110Å
endcap: no
pH range: 2.5 to 8
temperature limit: 80°C
Good general purpose packing for normal phase separations. Moderate surface area. Replaces Hypersil^® and Pinnacle^® Silica. Similar Phase(s):

Hypersil Silica

particle size: 3μm or 5μm, spherical
pore size: 100Å
endcap: no
pH range: 2.5 to 8
temperature limit: 80°C
High surface area, Type B silica packing.