Pharmaceutisch Weekblad

, Volume 2, Issue 1, pp 445–467 | Cite as

Colour tests for the identification of alkaloids (and related compounds)

A literature review and a study of colour changes in relation to time
  • H. A. Dingjan
  • S. M. Dreyer-van der Glas
  • G. T. Tjan
Oorspronkelijke Artikelen


The colour tests with concentrated sulphuric acid, Erdmann's, Fröhde's, Mandelin's and Marquis' reagent applied to alkaloids (and related compounds) are given together with those found in the literature. Special attention is paid to the colour changes in relation to time.


Public Health Internal Medicine Alkaloid Colour Change Sulphuric Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Bohn, Scheltema & Holkema 1980

Authors and Affiliations

  • H. A. Dingjan
    • 1
  • S. M. Dreyer-van der Glas
    • 1
  • G. T. Tjan
    • 1
  1. 1.Department of Pharmaceutical Analysis and Analytical ChemistryState UniversityRA LeidenThe Netherlands

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