Microextraction (IMAGE)

Purdue University

Microextraction

Caption

A new technique called slug flow microextraction makes it possible to quickly detect the presence of drugs or to monitor certain medical conditions using only a single drop of blood or urine. The technique involves drawing a specimen into a glass capillary that also contains an organic solvent and rocking the capillary back and forth several times to extract target molecules from the biological sample into the solvent.

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(Purdue University image/Weldon School of Biomedical Engineering)

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