Restek - 9309A0252 - Raptor Biphenyl, 2.7 µm, 5 x 2.1 mm EXP Guard Column Cartridge, 3-pk.

ITEM #: 7445875
Restek chemists became the first to combine the speed of superficially porous particles (also known as SPP or “core-shell” particles) with the resolution of highly selective USLC technology. This new breed of chromatographic column allows you to more easily achieve peak separation and faster analysis times without e x pensive UHPLC instrumentation.
The innovative Biphenyl is Restek's most popular LC stationary phase because it is particularly adept at separating compounds that are hard to resolve or that elute early on C18 and other phenyl chemistries. As a result, the rugged Raptor Biphenyl column is e x tremely useful for fast separations in bioanalytical testing applications like drug and metabolite analyses, especially those that require a mass spectrometer (MS). Increasing retention of early-eluting compounds can limit ionization suppression, and the heightened selectivity helps eliminate the need for comple x mobile phases that are not well-suited for MS detection.
Stationary Phase Category: Phenyl (L11)
Ligand Type: Biphenyl
Particle: 2.7 µm or 5 µm superficially porous silica (SPP or "core-shell")
Pore Size: 90 Å
Carbon Load: 7% (2.7 µm), 5% (5 µm)
End-Cap: yes
Surface Area: 150 m 2 /g (2.7 µm) or 100 m 2 /g (5 µm)
Recommended Usage:
pH Range: 1.5-8.0
Ma x imum Temperature: 80°C
Ma x imum Pressure: 600 bar/8, 700 psi (2.7 µm) or 400 bar/5, 800 psi (5 µm)
Properties:

• Increased retention for dipolar, unsaturated, or conjugated solutes
• Enhanced selectivity when used with methanolic mobile phase
• Ideal for increasing sensitivity and selectivity in LC-MS analyses

Switch to a Biphenyl when:

• Limited selectivity is observed on a C18
• You need to increase retention of hydrophilic aromatics
• Free-Turn architecture lets you change cartridges by hand without breaking inlet/outlet fluid connections—no tools needed
• Patented titanium hybrid ferrules can be installed repeatedly without compromising high-pressure seal
• Auto-adjusting design provides ZDV (zero dead volume) connection to any 10-32 female port

Ma x imum cartridge pressure: 1, 034 bar/15, 000 psi* (UHPLC), 600 bar/8, 700 psi (2.7 μm); 400 bar/5, 800 psi (5 μm)
* For ma x imum lifetime, recommended ma x imum pressure for UHPLC particles is 830 bar/12, 000 psi.
Raptor Biphenyl EXP Guard Column Cartridge, 2.7um, 5 x 2.1mm
This listing is for Pack of 3