Abstract
A miniature capillary electrophoresis mass spectrometry (CE/MS) system has been developed in this work. A 100% electrical driven miniaturized CE device was integrated with a miniature MS instrument, which has a discontinuous atmospheric pressure interface (DAPI) for coupling with atmospheric pressure ionization sources. A nanoelectrospray ionization (nano-ESI) source was developed with a sheath liquid interface for coupling the miniature CE and the MS system. A systematic characterization and optimization of the analytical performance have been done. The analysis of isobaric peptides and avoiding charge competition effects in nano-ESI sources have been demonstrated.
| Original language | English |
|---|---|
| Pages (from-to) | 2236-2241 |
| Number of pages | 6 |
| Journal | Analytical Chemistry |
| Volume | 87 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 17 Feb 2015 |