Figure 3. From the left: CoCl2 (pink); CoCl2 and nicotine (green complex); cigarette for extraction; Cu(NO3)2 and nicotine (green complex); Cu(NO3)2 solution (light blue)

From

Nicotine and Colored Complexes

Giorgio Volpi

World Journal of Chemical Education. 2016, 4(3), 67-72 doi:10.12691/wjce-4-3-4