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separatory funnel

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separatory funnel [′sep·rə‚tȯr·ē ′fən·əl]
(chemistry)
A funnel-shaped device used for the careful and accurate separation of two immiscible liquids; a stopcock on the funnel stem controls the rate and amount of outflow of the lower liquid.


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Ground material was placed in a 300 ml separatory funnel (glass wool above the stop-cock for filtration) and soaked in 200 ml of hexane for 18 hours at which time the solvent was drained and the extract concentrated by rotary evaporation.
Organochlorines were eluted with 150 mL 20% water in acetonitrile to a separatory funnel containing hexane and water.
 
 
 
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