Nothing special (Score 5, Informative)

As per the abstract, compounds to be identified are done so with a mass spectrometer - nothing special if you're used to working in an organic chemistry lab. The identified molecule is then checked against a database of other known molecules, where if it happens to be new and unidentified, a test is then performed to see how markedly it affects serotonin, norepinephrine and dopamine. From this, you are able to /roughly/ infer what actions and side-effects it may cause to the user. That's the gist of it!