New Restek Raptor Inert LC Columns


Raptor LC columns combine the speed of 2.7 µm SPP with the resolution of Ultra Selective Liquid Chromatography (USLC) technology, improving separations and speeding up analysis times with standard HPLC instruments. When speed is your goal, Restek recommends the Raptor line of LC columns.


Raptor Inert Biphenyl

The industry-leading Biphenyl is Restek's most popular LC stationary phase. It is particularly adept at separating compounds that are hard to resolve or that elute early on C18 and other phenyl chemistries.


Raptor Inert ARC-18

The Raptor ARC-18 column features a well-balanced retention profile without the drawbacks of using an ordinary C18 in the harsh, acidic mobile phases needed for mass spectrometry. Even after extended use in these low-pH (≤ 2.0) conditions, the sterically protected ARC-18 offers consistent retention, peak shape, and response for charged bases, neutral acids, small polar compounds, and more.


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