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Traditional and not-so-traditional chemistry lab work
straining blended blubbervacuum is used to suck fats
Emma Teuten pours concentrated sulfuric acid into flask full of fat-filled whale extract, turning the mixture black.hexane-halogen mixture
hexane extract rotary evaporator
whale extract is passed through silica gelpreliminary results from the gas chromatograph

  
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hexane extract
Teuten washes the hexane extract with water to remove the remaining acid (foreground), then passes it through a silica gel (white mixture in column) to further purify the sample down to the chemicals that she needs to study. (Photo by Tom Kleindinst, WHOI Graphic Services)

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Posted: March 7, 2007

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