Restek Raptor - High-Performance HPLC Columns for Precise Analyses

Raptor^® (U)HPLC columns, manufactured by Restek™ are based on Core-Shell (Fused-Core™) technology. The silica-based stationary phases consist of a non-porous core and an porous outer layer, that provides fast separations without excessive backpressure. Raptor^® columns are available with different modifications. The particle sizes are 1.8, 2.7 and 5 μm.

Raptor^® ARC-18 is an octadecyl-modified phase for LC/MS at low pH conditions.

Raptor^® EtG/EtS is an application specific HPLC column for the analysis of Ethyl glucoronide (EtG) and ethyl sulfate (EtS).

Raptor^® Polar X is a column which has both HILIC and ion exchange properties. When a low water content phase is used, the HILIC mechanism is predominant and when a high water content phase content is used, ion exchange is the predominant mechanism.

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Technical Data

Phase-Name	Modification	Particle Size	Pore Size	End-capping	C-Content	USP	Surface	pH-Range	Tmax
Raptor^® ARC-18	C₁₈	1.8 µm 2.7 µm 5 µm	90 Å	N/A	N/A	L1	125 m2/g 130 m2/g 100 m2/g	1.0‒8.0	80 °C
Raptor^® C18	C₁₈	1.8 µm 2.7 µm 5 µm	90 Å	+	N/A	L1	125 m2/g 130 m2/g 100 m2/g	2.0‒8.0	80 °C
Raptor^® Biphenyl	Biphenyl	1.8 µm 2.7 µm 5 µm	90 Å	N/A	N/A	L11	125 m2/g 130 m2/g 100 m2/g	1.5‒8.0	80 °C
Raptor^® FluoroPhenyl	Pentafluorophenylpropyl	1.8 µm 2.7 µm 5 µm	90 Å	N/A	N/A	L43	125 m2/g 130 m2/g 100 m2/g	2.0‒8.0	80 °C
Raptor^® HILIC-Si	-	2.7 µm	90 Å	-	-	L3	150 m²/g	2.0‒8.0	80 °C
Raptor^® EtG/EtS	Proprietary	2.7 µm	90 Å	Proprietary	Proprietary	N/A	150 m²/g	2.0‒8.0	80 °C
Raptor^® Polar X	Proprietary	2.7 µm	90 Å	N/A	N/A	N/A	N/A	2.0-8.0	80 °C