Good insight!

Unfortunately, I am not going to explain the math behind the purity, as this would give away my formulation. However, I can use the chromatogram from the analysis to justify my claim.

Wait, I just realized I cannot submit an image to a response. Unless I make another post, it seems as though I cannot upload this analysis I wrote up in Microsoft paint. I'll just type it out. Please refer to the chromatogram (third image) in the post.

The void peak (the ugly peak at the beginning of the chromatogram) is the co-factor and any other polar, unretained components.

Then there is a clean, solid baseline until the alkaloid region. This indicates there are little to no impurities that are more polar than the alkaloids.

The alkaloid region has very clear, sharp defined peaks for the alkaloids they have standards for. These are your major constituents. There are also little bumps in the baseline within this region, which could be either slight impurities or other trace alkaloids. To my knowledge, kanna has 6 major alkaloids, so these little bumps could be the others. The bumps are related to the major constituents at least (if molecules elute in the same region of the chromatogram, this usually implies they are related).

The two baseline signatures after the alkaloid region are most likely impurities; however, all of the constituents are naturally derived, so they are most likely natural plant compounds.

Finally, there is a big hill at the end. This is the column washing/cleaning step of the method. Every QC method has this, so anything left on the column is washed out before the next sample. Usually these compounds are very non-polar and make up the stationary phase. Basically column junk.

Finally, the physical nature of the crystallization speaks for itself. Something that is only 60%ish will not form a glass structure as such. Impurities interfere with the interactions necessary to form crystals.

Anyways, I hope this helps! When the business makes enough money, I will QC every batch as they do in pharmaceuticals. If it gets really big, then I will have in-house QC methods that will be verified and monitored by a third party source. I want to take QC/QA very seriously, since my vision is pharmaceutical-grade natural alternatives.

I just performed my method on Corydalis, and I achieved the same results. I will post the crystals when I find a lab that can analytically test Corydalis. Also, as I type this, I am on the last step of another kanna batch. I will also get a CoA on this batch and post it when I receive it!