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

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The visualizing reagent commonly used for Cu(II), Cd(II), Ni(II), and Co(II) ions in paper chromatography is ammonia (NH3), which reveals brilliant colors for certain transition metals. Ammonia is noted as a general reagent for this purpose, effectively enhancing the visibility of these ions. Other visualizing reagents may exist, but specific examples were not mentioned in the discussion. The use of NH3 in a chamber is highlighted as a practical method for achieving clear results. Overall, ammonia is a reliable choice for visualizing transition metals in chromatography.
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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?
 
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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
 
thanks for the fast reply
 
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