There are test kit available which show you if a bud is a "cbd bud" or "drug weed". It does this by checking the balance between CBD and THC.
You can use this test to tell if there are synthetic cannabinoids sprayed on the weed: If the test tells you that your bud is CBD but it makes you high...
With Battery acid
1. 1 g of CBD was added to 35 ml of 95% ethanol in a 50 ml Round Bottom Flask (RBF).
2. Placed in a hot water bath at 70°C.
3. Once the CBD was dissolved, 4 drops of 35% sulfuric acid were added to acidify the solution, pH < 3.
4. The mixture was allowed to reflux for 24 h in...