GL Cart guard column are designed as economical type to protect your expensive analytical column. GL Cart is one dimension 5 mm × 4.6 mm I.D. (Compatible analytical columns’ I.D. is 4.0 mm, 4.6 mm.) GL Cart holder is reusable. InertSustain PFP columns are bonded with Pentafluorophenyl groups to our newly developed ES silica gel, which delivers unique separation patterns with excellent peak shape and sensitvity. The chromatographic difference stems from the fact that the PFP phases provide interactions such as π-π, dipole, hydrogen bonding, and ionic interactions unlike conventional PFP columns.Meer tonenMinder tonen