Abstract
ABSTRACTSeparation of rosmarinic acid by synergic reactive extraction using a mixture of two extractants (one of aminic and one of basic type) dissolved in solvents with different polarities has been studied. By analysing the influences of the main factors (organic phase polarity, extractant concentration in the mixture) on the synergic effect, the most important synergic effect (CS = 10.89) was found to correspond to the extractants mixture containing 5 g/l D2EHPA and 5 g/l Amberlite LA-2 dissolved in n-heptane. In this system the extraction constant reached the maximum value of 6.78 l2/mol2.
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