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. Author manuscript; available in PMC: 2010 Jul 1.
Published in final edited form as: Free Radic Biol Med. 2009 Apr 8;47(1):72–78. doi: 10.1016/j.freeradbiomed.2009.04.002

Figure 2.

Figure 2

The relationship between Rf obtained on TLC plastic-backed silica gel plates (Rf(Plastic)) and on TLC aluminum-backed silica gel plates (Rf(Al)) in acetonitrile: KNO3-saturated H2O:H2O = 8:1:1. The ortho porphyrins are presented as squares (from methyl to octyl) and meta as triangles (from methyl to hexyl). The relationship is described with equation Rf(plastic) = 0.91 x Rf(Al) + 0.01, R2 = 0.9609.