✦ LIBER ✦

Preconcentration of cadmium, cobalt, copper, nickel and zinc by solvent extraction into methyl isobutyl ketone with 1,5-bis [1-(2-pyridyl) ethylidene] thiocarbonohydrazide and 1,5-bis [phenyl-(2-pyridyl) methylene] thiocarbonohydrazide

✍ Scribed by M.T.Siles Cordero; A.Garcia de Torres; J.M.Cano Pavon

No coin nor oath required. For personal study only.

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