GC Separation of iso-THC, D8-THC, and D9-THC Application Note

[Dr_Jebril]

HP35MS or DB35MS have worked very well for me, since the start.
It is what @kcalabs described above.

@kcalabs

up to a 35% (what we use) phenyl stationary phase

I had posted this data in another topic before:

What’s everyone’s take on converted D9?

@Kingofthekush420 Here are data: [image] I did not produce these specific samples myself. But I’m aware of the underlying process, and I estimated they are quite representative. The (suspected) iso-THCs are indicated with the question marks (4.5% and 22% in the d8 and d9 sample respectively). Both samples contain a trace of the other one (and a trace of CBD as well). If the PTSA reaction is stopped in early time, the product will actually contain more of the d9, and also more of the blue “…

This recent note from Cayman confirms the assumption I made in this other topic.

And my data shows the separation can be achieved in a shorter time.