For each of your samples of thyme extracted with the different solvents in Part I, do the following:
Mark the TLC plate using a pencil. Each spot should be about 1 cm away from the bottom and labeled with a number or a letter. You should have 5 spots: the dry thyme extract, thymol standard, carvacrol standard, p-Cymene standard, and the cospot.
Develop the plate using the developing solvent you decided was best from Part II.
Visualize the spots using UV light and iodine.
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