L. Giroux et Dj. Barkley, SEPARATION OF METAL-CYANIDE COMPLEXES BY REVERSED-PHASE ION-INTERACTION HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY, Canadian journal of chemistry, 72(2), 1994, pp. 269-273
Reversed-phase ion-interaction chromatography has been used to study t
he separation of Cu(I), Ag(I), Ni(II), Au(I), Co(III), Fe(III), and Fe
(II) cyano complexes on silica and carbon-based reversed-phases with U
V detection at 215 nm. Separation of the metal-cyanide complexes was a
ffected by a number of experimental factors including the nature and c
oncentration of the organic modifier, nature and concentration of the
ion-pairing reagent, pH, and ionic strength of the mobile phase. Diffe
rences between the elution order of metallo-cyanides observed in the p
resent work and in other investigations under similar experimental con
ditions are explained by a difference in the ionic strength of the mob
ile phase. Finally, this technique is used to analyze metal-cyanide co
mplexes in a gold mill solution.