Easiest decarb test ever…
Dissolve a small sample in EtOH, dab on a TLC plate with a capillary tube and allow to fully dry (careful using a heat gun-you may decarb your sample!) apply bromocresol green ( I use a soaked q-tip in a rolling fashion) Yellow? keep going. Blue? Yer good to go!
I used to run a TLC plate in a chamber with Ethyl acetate and Heptane …but why bother!