Figure 1. Separation of metal ions (Pb2+ and Cu2+) by paper chromatography

From

Metal Ions Separation Via Paper Chromatography: Enhanced Methods Using Eluting Solutions

Arijit Das, Digvijoya Sarmaa, Paresh Debnath, Bijaya Paul

World Journal of Chemical Education. 2023, 11(4), 134-140 doi:10.12691/wjce-11-4-2