ESI current oscillations for a high-resistivity fluid with the simultaneous visualization of the Taylor cone
- Authors: Fomina N.S.1, Masyukevich S.V.2,3, Gall L.N.2,3, Gall N.R.1,4
-
Affiliations:
- Ioffe Physico-Technical Institute
- Institute for Analytical Instrumentation
- St. Petersburg Scientific Center
- Peter the Great St. Petersburg Polytechnic University
- Issue: Vol 71, No 13 (2016)
- Pages: 1260-1265
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182220
- DOI: https://doi.org/10.1134/S1061934816130050
- ID: 182220
Cite item
Abstract
Low-frequency oscillations occurring in the electrospray of liquids with low electric conductivity were studied. Based on spectral measurements of oscillations in the range of voltages typically used in mass spectrometry, it was shown that the spectrum reveals the control frequency, which accounts for ≈80% of power oscillations, and a set of overtones. The magnitude of the main frequency varies in the range 200–800 Hz and increases with increasing voltage up to breakdown. Immediately after the collapse of oscillations, the most stable spraying mode is realized. A model describing the mechanism of oscillations due to the role of space charge accumulated on the counter electrode was proposed.
About the authors
N. S. Fomina
Ioffe Physico-Technical Institute
Author for correspondence.
Email: kolomna.88@mail.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021
S. V. Masyukevich
Institute for Analytical Instrumentation; St. Petersburg Scientific Center
Email: kolomna.88@mail.ru
Russian Federation, Rizhskii pr. 26, St. Petersburg, 190103; Universitetskaya nab. 5, St. Petersburg, 199034
L. N. Gall
Institute for Analytical Instrumentation; St. Petersburg Scientific Center
Email: kolomna.88@mail.ru
Russian Federation, Rizhskii pr. 26, St. Petersburg, 190103; Universitetskaya nab. 5, St. Petersburg, 199034
N. R. Gall
Ioffe Physico-Technical Institute; Peter the Great St. Petersburg Polytechnic University
Email: kolomna.88@mail.ru
Russian Federation, Politekhnicheskaya ul. 26, St. Petersburg, 194021; Polytechnicheskaya ul. 29, St. Petersburg, 195251