“…Some examples of charged substances separated with the aid of polymer-based ion exchangers in thin-layer chromatography are amino acids (188), amino sugars (189), antibiotics (190), inorganic ions (191), nucleotides (192), organic acids (193), and pharmaceuticals (194). 177 178 179-183 184-186 187 The mobile phases used for all of these ion exchangers are aqueous buffers.…”