Hi all,

I am setting up a lab in southern Sweden with the main focus on detection of pesticides and adulterants in essential oils.
Have purchased an Agilent 7890 GC with FID but i am struggeling with ChemStation at the moment. Agilent has a RTL flavour and fragrance database that uses a HP5 19091j-215 column that's locked at 70.000 on Pentadecane.
I have RTL locked the method as in the Agilents description but then i get a slightly shift on the retention times even if Pentadecane is on 70.000. For example i get Linalool at 39.791 instead of 40.218 as in the RTL database.

All tips and tricks are welcome because i have no idea what to do?

Thanks in advance!!
/Alvin