I'm not sure this really counts given the conditions it was grown in but...
I got these two results from Altitude Consulting recently:
TBM powder + lysed resin/wax: 1.09% Mescaline
TBM resin/wax: 1.46% Mescaline
They were ~50day old pups grown from a grafted TBM scion on pereskiopsis in my aerogarden with very high nutrients in resevoir.
They were frozen immediately after cutting, then de-waxed, dehydrated and de-spined. but thawing led to tons of liquid dropping out and turning into resin in the dehydrator. I didn't expect Altitude to run a tiny bit of the resin separately, that was nice of them.
HPLC-DAD is what Altitude advertises, and they recently acquired a Mescaline HCl CRM used for this.
I feel like there's alot of factors why the low result for TBM: young age, very high nutes, pereskopsis graft, i spilled some of the lysed liquid