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Please use a ruler to measure the Rf of red 40 and red 3 on both pates Isopropanol/water Measuri thie R3 is on baton BE BI BI BI RYO R3 85 YG R3 The two plates are 1. developed with 50/50 water isopropanol solvent 2. developed with salt water solvent Use my pencil marks if they are available. (ie, developed with salt water solvent plate) You can zoom in to see better. WE R & tho RHO RYOKOK developed with 50/50 water/ isopropanol solvent Rfred 3 Rf red 40 developed with salt water solvent Rf red 3 Rf red 40
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