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chromatography
(kro″mә-tog´rә-fe)
a technique for analysis of chemical substances; the substance to be analyzed is poured into a vertical glass tube containing
an adsorbent and the various components of the substance move through the adsorbent at different rates of speed, according to their degree of attraction to it, and produce bands of color at different levels
of the “adsorption column.” adj., chromatograph´ic., adj.

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