![]() The compounds can be grouped into broad categories of organic acids, organic bases and neutral organics. The first is a classic example of an extraction procedure that can be used to separate acids, bases, and neutrals.Īn aqueous sample contains a complex mixture of organic compounds, all of which are at trace concentrations. Next we want to examine some general types of extraction procedures that are commonly used. ![]() As we will see shortly, this distribution of a solute between two immiscible phases forms the basis of chromatographic separations as well. A fresh portion of the organic phase is then added to remove more of the solute in a second extraction.
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