95% Dimethyl- 5% diphenylpolysiloxane, bonded and crosslinked phase. he TRB-5MS Column uses the same stationary phase as TRB-5, but the polymer synthesis process, the capillary deactivation technique and the bonding and crosslinking procedures have been optimized to obtain the minimum possible bleeding level and an exceptional chemical inertness The bleeding specifi cations for a column of 30m x 0,25 mm x 0,25 µm (P/N 520232) inidcate that it is lower than 4 pA at 320ºC Column recommended to work with any selective detector Ideal column to connect with a mass detector. Its ultra low bleeding joined to its high chemical inertness allows for a better signal/noise ratio (higher sensitivity level), and therefore better detection and quantifi cation of sample components at low concentrations.