maximum Inlet head pressure for GC Capillary column

Does GC capillary column(like a HP-1) has maximum operational inlet pressure?

I 'd like to use column at constant inlet pressure, 95psi.

GC S/SL inlet can supply upto 100psi(general GC).How about column? It also can maintain at that high pressure?

Actually I have plan to combine two columns(100mx0.25mmx0.5um and 2.5mx0.1mmx0.1um) for GCxGC.

When I use single column(100mx0.25mmx0.5um) the inlet pressure is 44psi constantly.

After combine, I have to set inlet pressure to 95psi for the same column flow with single column to compare data.

Parents Reply
  • I want to know that capillary column(WCOT, liquid phase) can use over 95psi Inlet pressure. Normally there are information about limit of temperature and recommended flow rate related to column id.Do you think there are no limitation about inlet pressure using WCOT capillary column?

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