samhfj691
samhfj691 samhfj691
  • 03-02-2021
  • Chemistry
contestada

. Why do you use a pencil and not a pen to mark TLC plates?

Respuesta :

beautifulcharm
beautifulcharm beautifulcharm
  • 03-02-2021

Answer:

Pencil is always used to mark chromatography paper or TLC plates because ink may run and interfere with the chromatogram. ... As soon as the paper/plate is taken out, mark the solvent front with a pencil before the solvent evaporates and the front becomes impossible to see.

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