We have developed a sonic spray ionization interface that enables coupling of capillary electrophoresis (CE) and mass spectrometry (MS). In sonic spray ionization, a sample solution is sprayed at any solution-flow rate from a sample-introduction capillary with a high-speed gas flow coaxial to the ca
A novel nanospray capillary zone electrophoresis/mass spectrometry interface
โ Scribed by Frank Hsieh; Elizabeth Baronas; Craig Muir; Stephen A. Martin
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 75 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0951-4198
No coin nor oath required. For personal study only.
โฆ Synopsis
The high resolution of capillary zone electrophoresis/mass spectrometry (CZE/MS) offers a promising technique to characterize biomolecules in pharmaceutical and biotechnology industries. A novel capillary zone electrophoresis/electrospray ionization time-of-flight mass spectrometry (CZE/ESI-TOF MS) interface was designed in this study to successfully integrate ESI-TOFMS, nanospray, and CZE for biomolecular identification. The interface offers a novel way to take advantage of the high resolution separation achieved during CZE and the detection sensitivity of nanospray ESI-MS. The results showed mixtures of peptides were highly resolved within a few minutes (each CZE electropherogram of a peptide is 2-3 seconds). The novel CZE/ESI-TOFMS interface may simultaneously provide sensitivity, data acquisition speed, mass range, and mass resolution while maintaining resolution of the CZE separation.
๐ SIMILAR VOLUMES
## Modified liquid junction interface for nonaqueous capillary electrophoresis-mass spectrometry Electrospray ionization (ESI) is the most widely used ionization method in on-line coupling of capillary electrophoresis-mass spectrometry (CE-MS). The conventional coaxial sheath flow electrospray int
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A new method for preparing disposable microsprayers, for on-line capillary-zone electrophoresis/electrospray mass spectrometry (CZE/ES-MS) at sub-microliter per minute flow rates, is described. Different means of coupling these microsprayers to the CZE columns are presented, and compared with the mo