Restek Guard Column Raptor ARC-18 EXP 2.7 um 5 x 4.6 mm Pack of 4

Restek 9314A0250 Guard Column Raptor ARC-18 EXP 2.7 um 5 x 4.6 mm designed for use in High-Performance Liquid Chromatography (HPLC) and Ultra-High Performance Liquid Chromatography (UHPLC). A guard column is a small, disposable column placed before the main analytical column to protect it from contaminants. The Raptor ARC-18 Guard Column is used to protect the analytical column, and maintain performance. The small particle size is typical of the Raptor SPP line, offering high efficiency and low backpressure compared to fully porous particles of a similar size.