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2009.159 . Spinach Extract | by pipilo
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2009.159 . Spinach Extract

I used a knife and a giant mortar and pestle to cut and grind up a pound or so of spinach. A mixture of acetone and petroleum ether extracted chlorophyll and beta carotene from the spinach. My students separated the two using a chromatography column made up of sand and finely ground silica, then they analyzed each substance using a Spec 20. This is how I spent most of my day today.

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Taken on June 8, 2009