Mecke reagent
The Mecke reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It is composed of a mixture of selenous acid and concentrated sulfuric acid,[1] which is dripped onto the substance being tested.
The United States Department of Justice method for producing the reagent is the addition of 100 mL of concentrated (95–98%) sulfuric acid to 1 g of selenous acid.[2]
| Substance | Color |
|---|---|
| Chlorpromazine HCl | Blackish red |
| Codeine | Very dark bluish green |
| Diacetylmorphine HCl (Heroin) | Deep bluish green |
| Dimethoxy-meth HCl | Dark brown |
| Doxepin HCl | Very dark red |
| Dristan | Light olive brown |
| Exedrine | Dark greyish yellow |
| LSD | Greenish black |
| Mace | Dark greyish olive |
| Methylenedioxyamphetamine HCl (MDA) | Very dark blue |
| Mescaline HCl | Moderate olive |
| Morphine monohydrate | Very dark bluish green |
| Opium | Olive black |
| Oxycodone HCl | Moderate olive |
| Propoxyphene HCl | Deep reddish brown |
| PMMA | Pale olive green[3] |
| PMA | Pale olive green[3] or light green[4] |
| Sugar | Brilliant greenish yellow |
See also
References
- "Mecke Reagent Testing Kit (Red Label)". Dancesafe. Archived from the original on 2012-01-24. Retrieved 2012-01-26.
- "Color Test Reagents/Kits for Preliminary Identification of Drugs of Abuse" (PDF). Law Enforcement and Corrections Standards and Testing Program. July 2000. Retrieved 2011-07-24.
- EMCDDA (30 Mar 2011). EMCDDA Risk Assessment: Report on the Risk Assessment of PMMA in the Framework of the Joint Action on New Synthetic Drugs. Dictus Publishing. p. 54. ISBN 978-3-8433-2695-7. Retrieved 2012-01-25.
- "Clarke's Analysis of Drugs and Poisons". Pharmaceutical Press. 2011. doi:10.1080/00450618.2011.620006. ISBN 978-0-85369-711-4.
External links
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