Amino acid Rf value, Paper chromatography and TLC

 https://www.biotopics.co.uk/as/amino_acid_chromatography.html

http://www.reachdevices.com/TLC_aminoacids.html

https://courseware.cutm.ac.in/wp-content/uploads/2020/06/SEPARATION-OF-AMINO-ACIDS-BY-PAPER-CHROMATOGRAPHY.pdf

https://vlab.amrita.edu/?sub=3&brch=63&sim=154&cnt=2

https://www.iitg.ac.in/biotech/BTechProtocols/Thin%20Layer%20Chromatography%20Protocol.pdf