Polaris Normal Phase

Polaris Normal Phase Guard Columns from Agilent Technologies

Choosing to use guard columns can help reduce operating expenses, by reducing the frequency of analytical column replacement. The guard column prevents damage caused by particulate matter and strongly adsorbed material. To maintain an adequate capacity for sample impurities, choose a guard column with an internal diameter similar to the column internal diameter. Ideally, the packing of the guard column should be the same as the analytical column so that the chromatography of the analytical column is not altered.

Agilent’s family of polar-optimized columns utilize ultrahigh-purity silica, novel polar modified technology, and unique bonded phases that maximize polar retention and selectivity, while virtually eliminating silanol activity.

Agilent Polaris Silica (Si) and Amino (NH2) columns are ideal for retention of polar columns in normal phase mode.