Now someone here told me I should not feed the trolls, so I will limit my conversation with you mr. smithx.
I don't know why you decided take this negative attitude. I had no ill feelings toward you or your company. I simply wanted to find out the quantity of cycloastragenol in your product. Suddenly, I became a "troll" for making you state what was in the product. This sort of attack is really counter productive in my view.
As for this latest discussion, you apparently are not familiar with how unknown compound analysis works. You should be, since analysis is part of your business, but allow me to explain.
Typical analysis is done by GC/MS or GC/NMR, HPLC is used sometimes, but it requires a standard for comparison on each run.
Let's start with HPLC. What you do is take a known pure substance and run it through your test setup. Then you take your unknown and run it through. If you get the same peak time curve, you are somewhat likely to have the same compound. Purity is determined by the area under the curve.
GC/MS is much more accurate. In this test, the GC is used to purify the unknown sample, which is then sent through mass spec. If you get the same curve and the same molecular weights as your suspected known compound, you're again fairly certain that it's what you were looking for. You can be more certain if you use more advanced types of ms, which break the molecules up into pieces. Again if you have the spectrum of your suspected known compound, and the pieces all match, you're much more certain that's what you've got.
The problem comes when you have an unknown that isn't a match for something you already have a spectrum for. Then you have a lot of work in front of you. Basically, at that point you have to somehow obtain pure samples of each of the compounds you think may be your unknown, run ms on each one, and then compare that to your unknown sample. This is very expensive and not guaranteed to work, if you don't predict what substance it is likely to be and aren't able to obtain a pure sample of that to compare your unknown to.
That's what I meant when I said "It may be neither cycloastragenol nor astragaloside IV, in which case you could be SOL if there's no existing spec data on whatever compound it is."
The point is that if you buy the TA-65 and do an analysis, and it doesn't match any known compound in your analytical lab's database, you will not easily find out what that compound is.
If I were you, I'd take the risk and buy the TA-65 in case you can unequivocally state that it is cycloastragenol or astragaloside IV. But I just wanted you to know that you might be wasting your money if it turns out to be neither of those, because analysis of a truly unknown compound would be likely to cost hundreds of thousands of dollars.
Edited by smithx, 21 September 2010 - 10:34 AM.