EME of peptides

We have for long time been investigating electromembrane extraction (EME) of peptides, in a large research project funded by the Research Council of Norway. Peptides are difficult because they have very poor partition into the liquid membrane. However, by testing a large number of liquid membrane compositions, we have learned that deep eutectic solvents show great potential. The deep eutectic solvents we prepare by mixing two solid substances together, and with a magical touch, we have a liquid that works superbly for peptide extraction!