a precaution when carrying out paper chromatography
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Use good quality pencil for drawing the reference line so that the mark does not dissolve in the solvent in which the chromatography is carried out.
Always use a fine capillary tube.
Keep the jar undisturbed and covered during the experiment.
The spot should be small and rich in mixture.
Allow the spot to dry before putting the strip in the jar.
Keep the strip erect. Do not let it curl.
Do not allow the spot to dip in the solvent.
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