Crazy how far we’ve all come since then!
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Ya water clear and D8 has been made since like 2015? 14? First on accident then on purpose as many things go
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I would guess most are using a COA from back in May when they got samples. Many just requested the COA. Half those folks I don’t recognize. We immediately let our customers know when the results from Green Leaf and Desert Valley came back with a lower D8 percentage but they both showed ND on the D9. Just because they are using my COA doesn’t mean they bought from me. You are spot on there
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There was no loophole before the new farmbill came out in Dec '18 and almost immediately thereafter @Kingofthekush420 did his CSA analysis distinguishing hemp derived vs mmj isomers. That was key imo to D8 becoming viable, and he definitely broke that ground as I recall.
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in the future could you watermark them in a way that will prevent their use by third parties, perhaps add a semi-transparent disclaimer or something similar? The misrepresentation is rampant and it’s a big liability to have your name attached to a lot of questionable product moving through the mail
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You saying he was slanging D8 in 2018? 
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gc ms is about nist brother 
ie library any kind of ms is cool but if the spectra is already there well no need for samples.
calibrate and off you go
they all used gc so the spectra is done.
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In fact this is not as straightforward for cannabinoids.
A lots of those isomers exhibit similar spectra.
Even with a MS/MS, it seems not that more straightforward.
Doing this without any standard would need a mutli column and multi detector approach, also connected to some preparatory chromatography.
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can’t help being a bee sorry doc.
I want to test far more than cannabinoids but I guess that make scene.
my line of thought was to go gc/ms and ftir as is done in forensic labs.
so the ions that are created by the fid are different based on where the double bond is ?
I’m down to do whatever is necessary.
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Anything this guy wants to sell you I’ll teach you for free.
4083487264
Jbv lives.
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I don’t really understand you question. 
The FID just detect ionization of the flame, due to the combustion of carbon passing there. It gives you a “carbon number”, which you can relate the concentration of your analyte. Since most of those compounds have very similar masses, the same calibration can be used for all of them (with a small 2-3% error at most. provided the set up is well tuned, with no leaks)…
Depending on where the double bond is, and on the column specs, the analyte will spend more or less time before coming to the detector.
The FTIR is not a convenient method for such purpose, still needs research and development… NMR would be much nore efficient. Still, it would need quite purified sample, and thus heavy work of preparative chromatography etc…
I think you posted something about FID/FID somewhere. Would also be an interesting approach. All this would eventually need a fancy set up, where one injection is diverted to different lines of analysis at different steps.
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No, saying he posted the legal loophole in CSA and '18 Farm Bill that is relied on today for hemp derived D8 use. He did it first. We were exploiting the same legal “loophole area”, covertly, which is why I recall it vividly, b/c I was annoyed others were on it. @Kingofthekush420 nailed it.
here’s @Kingofthekush420 IG converting D8 in 2018:
https://www.instagram.com/p/BmEbFhxANXF/?igshid=dl9x7h2c827b
https://www.instagram.com/p/BmW0vR2lS2U/?igshid=1rnz3nexo1ist
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ok so the fid does break down the molecule into carbon atoms
I was not sure of this.
so the time it takes to the detector is the amount of time it takes to break down the molecules
to carbon ions which in some cases will tell us the functional groups it came from.
tof is just molecular weight of the ions which is different and should will be the same for
both delta 8 and 9 if I am correct.
NMR im not running liquid helium in a bedsit flat so its not happening nor am I looking to hook
up three faze power.
again cannabinoids are only one part of many of what my “hobby” entails
so nmr and fid are about it for delta 8 and 9 detection from each other.
is there enough difference in polarity to make a lc separate the molecules ?
can delta 8 and delta 9 be separated by rp chromatography.
I have yet to see any reference to this in any of the journal articles I have read.
my thoughts (don’t forget I am not as educated as your self in this)
was that gc/ms would give one molecular weight and ftir would give one
a spectra based on functional group.
I have always though that the two could tell the difference between molecules and
where there bonds where if used together.
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“No promises or guarentees” but at the same time sounds a lot like you want to consult for people.
The FID does only detection. Its probe is located very close to the flame.
The break down is simply done by the flame (fed by a mix of air and H2).
The separation is based on the time taken by each different analyte to pass through the column.
These are three different component, and is the simplest approach,
The MS then proceed another way., and is made of two modules Following separation in the column, it first breaks down the molecule in smaller charged fragments, and further detects them individually. It allows to make a finer distinction between molecule of the same weight. But if those still break in similar fragment, it does not really bring any help. Then there are tricks, like marking the molecule (e.g. with deuterium, heavier than hydrogen), making certain fragment heavier, and easier to discriminate… as FID, it can also be coupled to another similar detector (with a game of column), to make 2D analysis and further increase the resolution.
TOF is another thing, which is able to also measure the time travel of given fragments into a given medium. It is in fact combined with MS in the “Q-TOF” systems, and allow to greatly enhance the resolution of MS.
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I can send one, it’s had a 6 weeks to degrade since it was tested initially though so it might not be the fairest comparison
Really curious if you would state your experience within this realm… mind sharing?
By training I am an analytical inorganic chemist. I used XRD, ICP-OES, NMR, TEM, FTIR, TGA, DSC, UV/Vis, GC-MS, single crystal x-ray crystallography, and a little QCM development in my training. My recent background is in pharma. Method development and validation for ICP-MS, (direct injection and headspace) GC-(MS, MS/MS, FID, TCD), HPLC-UV(PDA), and other techniques. In my free time I provide method development for people in the analytical realm of this industry in return for testing on my hobby projects.
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Pushing any boundaries with those hobby projects? Whats next on the horizon for us all?