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- Posts: 4
- Joined: Sat May 20, 2017 9:50 am
We are using a Restek Rxi®-35Sil on a Thermo Trace GC/FID System to analyse cannabinoids. The separation is working well, except that we get peak overlap between delta 8 and delta 9 THC, which are very similar molecules. The method we use is precisely as recommended by Restek for this column (see attachment), yet we do not achieve the separation of the these molecules. I tried to optimize the method (slower Temperature increase, decrease flow rate) a bit to improve the separation, but nothing worked. Do you have an idea how to tweak the system to improve this separation? Are we overlooking something?
Thanks a lot for any input!