Well, the Cannalyse kit comes with everything you need but....

This might be interesting to try if you've got the cash to blow on supplies:

* Home THC urine test strips.
* High accuracy lab scale.
* High proof alcohol or pure acetone.
* Buret, beakers etc. for titration.
* a whole lot of distilled water.

You could get a rough comparison between two samples of weed at least as far as the relative concentration of whatever specific chemicals those test strips respond to. This might be useful, or it might not. I'd love someone to try it though and report back I don't have the cash to buy equipment or supplies myself

You would need to first measure out identical weight samples of bud A and bud B - remember that the larger the sample you start with the better precession you can get in the final comparisons. You should make sure that each sample is COMPLETELY dry - I would suggest baking each sample after drying at high enough of a temperature to convert all thca to thc for long enough to completely dehydrate the sample... COMPLETELY. Everything that isn't a stem or seed should be ground completely with a mortar and pestle. You want a homogeneous blend finely powdered of the entire sample.

You would then need to place both bud samples in separate containers - make sure they are the same shape and size as we don't want any unintended differences to effect our results. Add the same amount of alcohol to each - I would say at least 1 liter of alcohol or acetate and 1 oz of powdered bud sample measured as carefully as possible.

(The good news is that if you use everclear or 151 for your extraction, you've got green dragon so your leftovers don't have to go to waste or if you prefer, you could use pure acetone for the extraction and then evaporate off the solvent when you are done testing - then you've got pure honey oil )

both containers should be closed up now and put away for a few days while the THC and etc. is dissolved into the alcohol.

You will now want to filter out your extracts - I would suggest using a french press to press down the mass of the plant sample and then pour the liquid through filter cloth in a funnel into new containers.

Next you are going to need to take a sample of each extraction and massively dilute it - you would need to measure out a bit of each - enough of a sample that you can be sure that your measurements are identical - say 10 ml. Each sample should then be pured into a large sample of water - say 1 gallon.

This is your initial dilution.

Now, you can take each of the diluted extract samples and use your buret to measure out a set of further dilutions: You would want to find how many ml of the extract mixed into a large sample of water are necessary for the test strip to read positive.

If the extract of sample A causes the test to read positive with 1 ml of the initial dilution mixed into a liter of distilled water whereas sample B doesn't read positive until 5 ml of the initial dilution is mixed into a liter of distilled water then it certainly means SOMETHING - though I'm not sure what exactly.

This all might be relatively pointless in the end, but then again it might turn out to be an interesting comparison between samples - to determine that you could do a baseline comparison between two sister plants that have a definite preserved difference in potency when smoked. If the seemingly more potent sample and the less potent sample do in fact show a real measurable difference in this test - then the test might actually be meaningful.

And hey, if not it still seems like it could be fun - and you wind up with a bunch of honey oil or green dragon to enjoy after all is said and done anyway

Have fun!