Good question! There's really not one test that is better than any other one, it really depends on what you want to test for... Have a look at the following table in which the properties of eacht test are listed and take your pick!
| Marquis | Mandelin | Mecke | mCPP | Ehrlich | Scott | Tri-All | |
| Ecstasy (MDMA, MDA, MDE) | |||||||
| (meth) Amphetamine | |||||||
| Ketamine | |||||||
| Cocaine and Crack | |||||||
| PMA/PMMA | |||||||
| 2C-B, 2C-C, 2C-I | |||||||
| DOB / DOI | |||||||
| 2-CT-2/4/7/21 | |||||||
| DXM | |||||||
| Opiates | |||||||
| mCPP / TfMPP / piperazines | |||||||
| Methylone, Butylone, Naphyrone | |||||||
| LSD and other Indoles (DMT, Psilocin, Psilocybin) | |||||||
| Oxycodone/Hydrocodone | |||||||
| Methylphenidate | |||||||
| 6-APB | |||||||
| MDPV, MDPPP | |||||||
| 5-MeO-MiPT | |||||||
| 2- AminoIndane | |||||||


