Journal
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
Volume 397, Issue 5, Pages 1767-1772Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-010-3749-x
Keywords
ESI; MS; Dielectric barrier
Funding
- Ministerium fur Innovation, Wissenschaft, Forschung und Technologie des Landes Nordrhein-Westfalen
- Bundesministerium fur Bildung und Forschung
- Deutsche Forschungsgemeinschaft
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A novel electrospray interface is presented which induces an electric field by dielectric polarization through a non-conductive barrier. Therefore, a square-wave high-voltage signal is applied. This technique allows mass spectrometric measurements in the positive as well as in the negative mass spectrometry mode without changing the polarity of the potential applied, and it decreases the risk of undesired discharges, induced by high electric currents. The applicability of this technique is demonstrated by mass spectrometric determination of reserpine.
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