INTRODUCTION 
 Transition metal cyanides typically exist in solution
 as the anionic cyanometallates, M(CN) n-. Since these 
 complexes are very stable (fonnation c~nstants being 
 as high as 1035 for Fe(CN)64-), they may be separated 
 b . h hro
 Y aIllon exc ange c matography.
 Cyano complexes of most of the transition metals ab- 
 sorb low-wavelength ultraviolet light making detection 
 . ''. . 
 at .c.a 215 nm a convement method for detennmation.
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