Chromatography Forum

We do catalysis based work by means of a process called Fischer-Tropsch (synthetic Fuels). I see carbon ranges from methane to upwards of C70. In making my short story long, I have to do daily analysis of wax that is normally from C11-C70. My GC method goes to 450C. Does anyone else go to these extremes and if so do you have a preference on specific companies of columns?

We use a specialty high temperature column designed for big stuff, so thin film, relatively short column, lower bleed. Restek, Agilent, others have these kinds.