Alkaline Beam (how to test for CBD) and a Fast Decarb Test Method

SidViscous · September 3, 2020, 9:40pm

Now I’m curious! I wonder if just gypsum would work or if the silica is a necessary ingredient. I wonder if another adsorbent would work either (I see a future use for all that zeolite dust that seems to accumulate in our media drying ovens)

cyclopath · September 4, 2020, 5:25pm

drywall?!?

SidViscous · September 4, 2020, 6:02pm

It’s traditionally “the other stuff” in TLC plates so who knows. Certainly cheaper to buy your analytical supplies at home depot than sigma

Photon_noir · September 7, 2020, 4:24am

Calcium carbonate, gypsum and other such natural materials wer among the first ever used to perform chromatography!

squig · September 7, 2020, 2:36pm

this works for sodum hydroxide as well.

I have had traces of CBD show up pink even when doing sodium bicarbonate washes.

I think the colour change will work with all alkali bases.

pdxcanna · October 4, 2020, 6:14am

I just wanna piggyback onto this with a visual I made showing common test material

AgTonik · October 4, 2020, 11:50am

If the weight samples (let’s say dried flower or distillate) were the same, can they show the CBD potency relative to another sample?

1234user · October 4, 2020, 1:44pm

If you hit cbd oil and a spectrophotometer a simple calibration curve will help answer that question.

pdxcanna · October 4, 2020, 3:47pm

I think it just shows the relative concentration, I didn’t weigh the samples out

pdxcanna · October 5, 2020, 2:52am

does anyone have a good source for HDPE squeeze bottles? The e-juice style ones, 60-100ml or so? I got a lot of interest in this stuff on instagram, I’d like to give some away but need to pack it properly

Myrrdin · October 5, 2020, 3:40am

Interesting image. What about CBDa and THC D-9 ?

pdxcanna · October 5, 2020, 4:04am

I’d have to go buy CBDa, I guess I could just decarb for the d9 though. I’ll try it with some of the d8 sample I have too

Myrrdin · October 5, 2020, 5:57am

Is the hemp flower in your pic decarbed ?

pdxcanna · October 5, 2020, 6:14am

Probably at least partially, it’s at least a year old. The thc flower wasn’t

dutchmulti · October 13, 2020, 11:52am

You mean this one Amazon.com

cyclopath · October 13, 2020, 3:04pm

Yessm

drake · November 22, 2020, 6:39pm

Does the d8 show any color using the beam test? Or its the lack of color that you’re looking for with D8 like with D9

pdxcanna · November 28, 2020, 11:14pm

I’m not sure, I’ll test for that soon though, I need to make more of the reagent

speaking of which, does anyone know if denatured alcohol or isopropyl will work for the beam test? I’d like to make a few bottles to give away but I don’t want to spring for food grade alcohol if I can avoid it

HeisenbergInd · November 28, 2020, 11:30pm

Works for THC in general

HeisenbergInd · November 28, 2020, 11:31pm

Never tried denatured…not sure