prov:value
| - Water-inmiscible organic extracting agents such as hydrocarbons, e.g. hexane, heptane, halogenated hydrocarbons, e.g. methylene chloride, chloroform or ether, e.g. diethyl ether, diisopropyl ether, carboxylic acid ether, e.g. ethyl acetate, butyl acetate are employed.
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