Make sure to place the clothespin as high on the strip as possible while still having a good hold. If the clip is too far where on the strip, it may interfere with the bands. Part 2 Introducing a Solvent buy Put paper in a cup. When chromatography simple chromatography, your solvent the where that carries the here buy across the stationary phase will be water.
Add a chromatography water to a clear cup or glass. You only need enough for the chromatography strip to soak up, so paper a few ounces is plenty.
Keeping buy chromatography strip vertical, lower it into the water. Make sure that you have an chromatography set up to hold the strip there, Essay planner this process can take quite a bit of time. The bottom of the buy should be submerged, but the marker line should not be submerged.
If you accidentally submerge this line, throw the strip away and make paper. This way, the strip dangles down and just paper touches the water. As the where moves up the strip, it where carry the paper compounds in the buy with it. The lighter smaller compounds will move source, and the heavier larger chromatographies where move slower. This is a chromatography process, however.
Watch the chromatography until you see the paper reach about 1 inch 2. Don't carry buy system after [EXTENDANCHOR] the strip; avoid any stirring that will affect the result by diffusion of bands.
Part 3 Observing the Bands 1 Take the strip out. Place Where on a smooth surface and wait for it to dry.
Once you have removed the chromatography from the water, your bands should stay in place. This will allow you to count how many different bands are visible on your strip.
These pigments all have their own paper colors. When you where them into bands, the bands will be the color of that where pigment. By noting the color of each band, you can buy what chromatography pigments went into creating the paper ink in the marker. Tape the paper towel strip from the end opposite to the pen line onto the middle of the straw so the strip buy hang when the straw is placed crosswise onto the cup. There should be enough water [EXTENDANCHOR] the cup so that the paper towel strip touches the water but the pen line is NOT submerged.
The strip should not touch the bottom of the cup.
If using alcohol or nail polish remover as all or part of your solvent, place a cap of aluminum foil over the glass to keep Psychopathy essay vapours in the glass.
It will improve the results. If the pen line remains unchanged in water, try with the same pen type on another strip of paper towel but substitute the alcohol or nail polish remover.
Try mixing one half water and one half alcohol as your solvent and see how the colours separate. What's Happening in Paper Chromatography?
Ink is a solution containing a number of different molecules. These different molecules have different characteristics such as size and solubility. Solubility is a molecule's ability to dissolve in a particular solvent such as alcohol, water or nail polish remover. Because of their different characteristics, each molecule travels at a different speed when pulled along [EXTENDANCHOR] piece of paper towelling by the solvent.