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- Posts: 52
- Joined: Tue Mar 20, 2018 2:28 pm
Currently running a basic FID test mix (C14,C15,C16) and looking to achieve area uV/sec >200,000 for the instrument to pass operational qualification stage.
When using a manual injection this is great as consistently getting >600,000 however when I change to using the autosampler the areas significantly reduce to anywhere between 25,000 and 250,000 (usually at the lower end).
There doesn't seem to be a particular pattern to when spec passes. I have performed full system maintenance including change of autosampler and syringes but the same issue occurs.
Any ideas?
Thanks in advance.