Method for the quantitative determination of protopine in Fumaria vaillantii

In an investigation of the polarographic behavior of protopine against a background of 0.1 N (C2H5)4NOH in 70% dioxane, it was found that the product of the electrode reaction is dihydroprotopine. A chromatopolarographic method has been proposed for determining protopine inFumaria vaillantii Loisl.