OPTIMA 1 Capillary columns for GC Features 100 % dimethylpolysiloxane · USP G1 / G2 / G38 Nonpolar phase Separation of components according to boiling points Thick film columns ≥ 3 m film are expecially recommended for solvent analysis. Low bleed columns with equal selectivity see OPTIMA 1 MS, ultra low bleed columns see OPTIMA 1 MS Accent Similar phases: OV-1, DB-1, SE-30, HP-1, SPB-1, CP-Sil 5 CB, Rtx-1, 007-1, BP1, MDN-1, AT-1, ZB-1, OV-101 Columns with 0.1-;0.32 mm ID and films 3 μm: max. temperature for isothermal operation 340 C, max. temperature for short isotherms in a temperature program 360 C; 0.53 mm ID columns with films 3 μm: max. temperatures 320 and 340 C, resp. thick film columns with films 3 μm: max. temperatures 300 and 320 C, resp.