What Visualizing Reagent Is Used for Transition Metals in Paper Chromatography?

[harshant]

Chromatography: Please help!

What is the visualizing reagent used for Cu(II), Cd (II), Ni(II) and Co(II) ions when performing paper chromatography?
Are there any special visualizing reagents for transition metals?

 

[eli64]

put the paper in a NH3 chamber, some of the transition metals will show up as very brilliant colors,

there are others (can't think of them right now) but NH3 is a good general one

 

[harshant]

thanks for the fast reply