Raptor Inert HILIC-Si EXP Guard Column Cartridge, 2.7 µm, 5 x 2.1 mm, 3-pk.

Now available with a premium inert coating, our Raptor LC guard cartridges provide optimal protection to your LC column and system while also reducing nonspecific binding of chelating analytes. Combined with Restek’s selective stationary phases, our inert guard cartridges are ideal for the analysis of metal-sensitive compounds.

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 with existing HPLC and UHPLC instrumentation.

To help protect your investment and further extend the life of our already-rugged LC columns, Restek offers the patent-pending guard column hardware developed by Optimize Technologies. A Restek LC guard cartridge in an EXP direct connect holder is the ultimate in column protection, especially when using dilute-and-shoot or other minimal sample preparation techniques.

Maximum cartridge pressure: 1034 bar/15,000 psi* (UHPLC); 600 bar/8700 psi (2.7 ?m); 400 bar/5800 psi (5 ?m).

* For maximum lifetime, recommended maximum pressure for UHPLC particles is 830 bar/12,000 psi.

Intellectual Property: optimizetech.com/patents

Features & Benefits

• Premium inert coating reduces nonspecific binding of chelating analytes.
• 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.
• Guard column cartridges require EXP direct connect holder (cat.# 25808).
• Pair with EXP hand-tight fitting (cat.# 25937–25938) for tool-free installation.

Great with any Raptor column to get ultimate protection from particulates and matrix contamination, especially when using dilute-and-shoot or other minimal sample preparation techniques.

Raptor SPP LC columns combine the speed of SPP with the resolution of USLC technology.