I am looking for a method to extract THC out of a "energy shot" type of product to analyse via GC-FID.
The product is being legally sold in washington under I-502 guidelines. I've tried a few liquid-liquid methods, but am not recovering anywhere close to what I should be. When testing plant materials I get excellent recovery, but something in this matrix is causing me problems.
Using hexane as my solvent I am recovering ~ 8ug/ml
The manufacture claims that the thc content is 5mg/30 ml or 0.166mg/ml
The ingredients are below
My last approach was as follows
1/2 ml Sx
1/2 ml hexane
vortex
centrifuge
add NaCl
vortex
centrifuge
filter through .45 syringe filter
manually inject into gc
The chromatogram looks nice. Nice background and clean peak.
Proprietary Ingredient Blend: Organic Cane Alcohol, Cannabis, Guarana Seed Powder, Organic Fair Trade Yerbe Matte Leaf, Quercetin from Green Tea
Other Ingredients: Water, Honey, Xylitol , Organic Lemon Extract, Citric Acid, Other Natural Flavors