The development of a counterflow-assisted preconcentration technique in capillary electrophoresis electrospray-ionization mass spectrometry.


A preconcentration approach for CE-MS using counterflow-assisted electrokinetic injection was proposed. The proposed preconcentration method was based on a counterflow-compatible sheathless interface. The interface was fabricated using a capillary-assembled PDMS microdevice that allowed the application of a counterflow and provided liquid-film electrical… (More)
DOI: 10.1002/elps.201300446


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