What are reagent tests?
Colorimetric tests are simple chemical reagents to use with a grain of a suspect substance.
By changing colors they determine what substance is present, but not quantity or purity.
Most popular reagents are: marquis, mecke, mandelin, liebermann, froehde and ehrlich.
These are the same tests, as the police carry.
Always remain skeptical regarding test results, because colors are not always unique.
Any kind of unexpected substances enables to make sure, what is NOT in the sample.
Always use reagents in a set!
Using multiple reagents you increase the precision of analysis.
A test kit gives a chance of detecting an adulterant and seriously reduces the margin of error.
Remember, using psychoactive substances always carries a risk.
The most dangerous substance is an unknown substance.