Results 161 to 170 of about 931,183 (212)

Dynamics of the water-plasma interface in various discharge modes of atmospheric-pressure plasmas. [PDF]

open access: yesSci Rep
Toremurat A   +6 more
europepmc   +1 more source

Optical and mass spectral characterization of the electrospray ionization/corona discharge ionization interface

Talanta, 2021
The interchange between electrospray ionization (ESI) and corona discharge ionization (CDI) with respect to applied bias on the needle is customarily placed at the point where light production begins at the tip of the needle. If a liquid sample is flowing through a needle that is observed to produce light, the ionization process is assumed to be ...
Eric Davis   +2 more
exaly   +3 more sources

Management of Ionization Source Based on a Pulsed Corona Discharge

Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, 2016
It is developed igniting electrical circuit for pulsed corona discharge ionization to operate a source as part of an ion mobility spectrometer. The simulation circuit for forming a corona discharge allowed optimizing the parameters. The possibility of electronic switching of the primary winding and reverse polarity diodes in the high voltage part of ...
Vladimir Belyakov   +11 more
exaly   +3 more sources

Trace Analysis of Organics in Air by Corona Discharge Atmospheric Pressure Ionization Using an Electrospray Ionization Interface

European Journal of Mass Spectrometry, 2004
A corona discharge ion source operating at atmospheric pressure in the point-to-plane configuration was constructed by reconfiguring the ion source of a commercial electrospray ionization (ESI) quadrupole mass spectrometer. This new source allows direct air analysis without modification to the mass spectrometer.
Leah Riter   +2 more
exaly   +3 more sources

Ionization and charge transport phenomena in liquid helium induced by corona discharge

Journal of Electrostatics, 2008
Abstract Corona discharge around a point electrode has been used to study ionization and charge transport phenomena in liquid helium (LHe) in a wide range of hydrostatic pressure (0.1–10 MPa). All experiments have been done by using 0.45 and 2.5 μm point electrode radii for negative and positive polarities of the electrode.
Nelly Bonifaci, A Denat
exaly   +3 more sources

Towards metals analysis using corona discharge ionization ion mobility spectrometry

Analytica Chimica Acta, 2016
For the first time, the capability of corona discharge ionization ion mobility spectrometry (CD-IMS) in the determination of metal complex was evaluated. The extreme simplicity of dispersive liquid-liquid microextraction (DLLME) coupled to the high sensitivity of CD-IMS measurement could make this combination really useful for simple, rapid, and ...
Mohammad Jafari   +2 more
exaly   +3 more sources

Study on the Effective Ionization Rate of Atmospheric Corona Discharge Plasmas by Considering Humidity

IEEE Transactions on Plasma Science, 2016
Atmospheric corona discharge plasmas are the most common diversely occurrence in the electric power system. In this paper, four elementary processes occurred in corona discharge are taken into account, including elastic collision, excitation, attachment, and ionization.
Xishan Wen, Lei Lan, Xiaoqing Yuan
exaly   +2 more sources

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