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A simple field test for alkaloid-containing plants


Web link: link.springer.com/10.1007/B...

Pages: 171 - 172

Abstract

In practice, a small drop (0.025 ml.) of an alkaloidal solution is spotted onto filter paper (Whatman No. I or equivalent), allowed to dry, and treated with a droplet of the reagent. A red spot on a yellow ground indicates the presence of alkaloids. The depth of the color is roughly proportional to the concentration of the alkaloid in the test drop.