3. Two mobile phases were evaluated to study the behavior of five dyes. The following data from each chromatogram were collected: Mobile Phase 1: Acetone/Water RF Mobile Phase 2: Ethanol/Water Distance traveled (cm) RF Distance traveled (cm) 4.7 4.9 Solvent front 0.62 0,ая 0.85 0.62 0.66 0.98 0.76 0.16 0.53 0.29 4.8 2.9 Green dye Red dye Yellow dye Blue dye Purple dye 3.7 1.3 0.8 4.0 2.6 2.9 1.4 3.1 a) Calculate the RF values for each dye for both chromatographic systems. Record these values in the table above. b) Explain your reasons for choosing which solvent would be most effective in separating the green from the blue dye. c) Which mobile phase system would be most effective for separating all 5 dyes? Explain.
3. Two mobile phases were evaluated to study the behavior of five dyes. The following data from each chromatogram were collected: Mobile Phase 1: Acetone/Water RF Mobile Phase 2: Ethanol/Water Distance traveled (cm) RF Distance traveled (cm) 4.7 4.9 Solvent front 0.62 0,ая 0.85 0.62 0.66 0.98 0.76 0.16 0.53 0.29 4.8 2.9 Green dye Red dye Yellow dye Blue dye Purple dye 3.7 1.3 0.8 4.0 2.6 2.9 1.4 3.1 a) Calculate the RF values for each dye for both chromatographic systems. Record these values in the table above. b) Explain your reasons for choosing which solvent would be most effective in separating the green from the blue dye. c) Which mobile phase system would be most effective for separating all 5 dyes? Explain.
Chapter33: High-performance Liquid Chromatography
Section: Chapter Questions
Problem 33.14QAP
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