Mecke reagent

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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 selenious acid.[2]

See also[edit]


  1. ^ "Mecke Reagent Testing Kit (Red Label)". Dancesafe. Archived from the original on 2012-01-24. Retrieved 2012-01-26.
  2. ^ "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.

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