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- Posts: 45
- Joined: Sat Oct 12, 2013 9:58 am
- Location: Romania
finally I got the funding, now I can sell my old GCQ Plus and buy a new GC-MS.
I narrowed to 2 options:
Agilent 5977A MS + 7890B GC vs Thermo ICQ MS + Trace 1300 GC
In the same price frame Agilent offered a slightly less advanced system meaning it has a diffusion pump where ICQ has a turbomolecular pump, and the EI source is not their Exctractor EI source but a normal Inert EI source where ICQ has their ExtractaBrite EI source.
This combination for Thermo gives a 1500:1 S/N for 1 pg/μl OFN and a 10 fg/μl IDL.
This combination for Agilent gives a 300:1 S/N for 1 pg/μl OFN and a 30 fg/μl IDL.
OFN - octofluoronaphatalene
IDL - instrument detection limit
Which of them do you consider to be best ? Please advise. Your experience with these brands is invaluable.
Thank you,
Vlad Popovici