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Drug Discovery

Mystery Item

Designed by Lyman Creighton Craig, the Countercurrent Distribution Apparatus is a separation apparatus that utilizes the distribution coefficients of substances in two liquids. The apparatus consists of a series of tubes, wherein solvents of different densities are passed through. Upon addition of more solvent to the first tube, the lighter liquid phase is transferred to the latter tubes while the heavier liquid phase stays in the first tubes.

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