or
TraceGOLD TG-5MS GC Column 15M X 0. 25MM X 0. 25uM TraceGOLD TG-5MS GC Column is a 5% phenyl phase the most widely used MS phase in gas chromatography. Diameter 0. 25MM Film thickness 0. 25uM Length(metric) 15M Equivalent to USP G27 phase