Background Information:Chromotagraphy is a technique that is used to seperate mixtures. Chromotagraphy is used in many different industries and labs. It has many applications. It can be used to seperate components in blood,drugs, or ink at a crime scene. Or it can be used in the food industry to identify the different ingredients and their amounts to make sure all of one product is being made the same way. These are just a few of the ways chromotagraphy is used in industry today. Paper Chromotagraphy is also a technique that is used to seperate components from different kinds of inks and dyes on paper by using solvents. It works by a process called capillary action. The attraction of the solvent to the filter paper is stronger than the attraction of the solvent to itself, so the solvent will be drawn into the paper. When a solvent diffuses into the filter paper, it will drag whatever is dissolved in it along with it. But, the molecules of different chemicals are all differeent sizes. The smallest ink (solute) molecules will travel almost as quickly as the solvent molecules and get carried quickly to the top of the filter paper. The largest ink molecules travel very slowly and stay near the bottom. This is the way the color components in ink or marker are seperated and can be identified
Paper Chromotagraphy is also a technique that is used to seperate components from different kinds of inks and dyes on paper by using solvents. It works by a process called capillary action. The attraction of the solvent to the filter paper is stronger than the attraction of the solvent to itself, so the solvent will be drawn into the paper. When a solvent diffuses into the filter paper, it will drag whatever is dissolved in it along with it. But, the molecules of different chemicals are all differeent sizes. The smallest ink (solute) molecules will travel almost as quickly as the solvent molecules and get carried quickly to the top of the filter paper. The largest ink molecules travel very slowly and stay near the bottom. This is the way the color components in ink or marker are seperated and can be identified