I believe Ehrlich's tests for indoles, a family which includes tryptamines, but also lots of other things. Colour tests are never conclusive; increasingly persu

I believe Ehrlich's tests for indoles, a family which includes tryptamines, but also lots of other things. Colour tests are never conclusive; increasingly persuasive results are usually obtained by combining several different colour tests, for example this post discussing LSD testing: http://www.drugs-forum.com/forum/showpost.php?p=1101068&postcount=9 http://www.drugs-forum.com/forum/showpost.php?p=1101068&....