Scientists at Givaudan (“JEE-vuh-don”) perform this technique on headspace gases to determine which molecules make perfumes smell good. For 10 points each:
[10e] Name this technique that identifies unknown molecules based on how quickly they pass through a stationary phase. It also comes in “paper” and “thin-layer” forms.
ANSWER: chromatography [or gas chromatography or GC; or paper chromatography or thin-layer chromatography]
[10m] The fragrance and flavoring industries heavily rely on this class of organic compounds that form when alcohols react with carboxylic acids.
ANSWER: esters
[10h] Nowadays, this most common industrial flavorant is mainly synthesized rather than being extracted from its natural host, a flower. This aldehyde derivative of phenol is also used to stain TLC plates.
ANSWER: vanillin [or ethylvanillin or methylvanillin; prompt on vanilla extract]
<Ganon Evans, Science - Chemistry> ~20033~ <Editor: Adam Silverman>