43 —™ rr J Y 4 Ma 4 Cu «100 “I Elution constant E Pe a Co 4 Zn 4 4 2001 Fig. 3 TTT 2 o b 6 T s Molarity of HC] T °° r 2 Klution constants of some divalent transition elements in hydrochloric acid (from Kraus and Moore, 1953). Elution constant E = dé/V where d= distance an adsorption maximum travels on passage of ¥ cc of eluent through a column of crossa~sectional area A ca”.

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