Column outlet pressure

hello camelia,

if you change the column outlet parameters, the calculation of the inlet-/column pressure changes & at the same time the column flow changes.

* if it is set wrong:
   ~ the separation on the column is massively affected.
   ~ with an MSD there is an additional problem: a too high flow (if vacuum outlet = ambient) lowers the MSD sensitivity, as it is dependent on the vacuum.

* However, there are MSD systems that have a CFT splitter, where the outlet pressure NOT is set to vacuum (and its correct)

some infos can be found:
   https://www.agilent.com/cs/library/eseminars/public/Carrier%20Gases%20in%20Capillary%20GC%20Analysis_021511.pdf

   other links could not be passed on

regards, M.

Thank you M for your reply and the slides. A splitter is not being used so the parameter will be corrected

Best Regards

Thank you M for your reply and the slides. A splitter is not being used so the parameter will be corrected

Best Regards