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That's not much to go on! What kind of story is it? Fiction, Non-fiction, Reference? If it's fiction, try adding some characters that are fantasy characters for yourself. What do you want to be. What did you what to do but haven't had a chance to do. Things like that. Be more descriptive of the … Read more
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Nice answer but it's wrong. I believe you just described partition chromatography. That came much later(1956). The original chromatography was discovered fifty years earlier by a Russian botinist named Mikhail Tsvet (whose last name, coincidentally, means "color") who was researching chlorophyll. He wound up separating all the pigments making up the colors of flowers. The … Read more