Question

How can we obtain coloured component (dye) from blue /black ink

Answer 1

hey mate here is ur ans
the separation technique used is chromatography
this is ink chromatography
use paper chromatography and calculate the retention factor of ink to determine what type of marker wrote it
rf value =
Distance traveled by solute (pigments in ink)
---------------------------------------------------------------
Distance traveled by solvent (water)
Record the Rf values for each colored pigment on your Reference
the solvent should immediately start moving
up the paper strip, carrying the ink pigments
with it. While waiting for the solvent to rise
toward the top of the paper, set up your other
cups and test the other markers, recording
information.