| http://www.w3.org/ns/prov#value | - A primary feature of the invention is to use, as sole solvent or principal solvent in the solvent system, an alcohol that has a boiling point above 100??? C., and that has a solubility in water of under 10 g per 100 g at 20??? C. Such alcohols are less hydrophilic than ethanol or other solvents that have been previously used as the hydrophilic solvent in emulsion preconcentrates.
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