a student loads a chromatography column with a colored organic compound and elutes with toluene. the colored band does not move down the column. what should the student try to get the band to move down the column? a student loads a chromatography column with a colored organic compound and elutes with toluene. the colored band does not move down the column. what should the student try to get the band to move down the column? a more polar solvent, such as acetone empty the column and start over heat the column with the heat gun a less polar solvent, such as hexane