Elite 502.2 capillary column 75m x 0.45mm, 2.55µm

GC Columns Velocity-Wax 30 M x 0.53 mm x 1.00 µm Polyethylene Glycol

Elite-35 capillary column, 30m x 0.32mm, 0.50µm

GC Columns Velocity-5 15 M x 0.32 mm x 0.25 µm 5% Diphenyl and 95% Dimethyl Polysiloxane

OPTIMA® 5 HT Capillary Columns