Preliminary investigations of preconcentration-capillary electrophoresis-mass spectrometry.


Analyte preconcentration on-line with capillary electrophoresis-mass spectrometry (PC-CE-MS) is described. Preconcentration cartridges were fabricated from PTFE tubing filled with ca. 1-2 mm bed of reversed-phase C18 HPLC packing or polymeric reversed-phase beads. The particle size of the stationary phase was of larger dimension than the internal diameter… (More)


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