Chromatography Portfolio 5. What evidence is there that marker ink is a mixture? 6. Each compound in the marker ink is represented by a color. Did one compound travel farther than others? Explain why you think that this is the case. 7. Did the compounds travel farther in water or isopropyl alcohol (rubbing alcohol)? Explain why you think that this is the case. 8. How could you improve upon the accuracy of your R[f] measurements?
5. The evidence that marker ink is a mixture is that it can be separated into different color pigments.