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Incorporation of a Venturi Device in Electrospray Ionization
Analytical Chemistry, 2003Electrospray ionization has grown to be one of the most commonly used ionization techniques for mass spectrometry, and efforts continue to improve its performance. Typically, the sprayer tip must be very close to the entrance orifice of the mass spectrometer in order to maximize the conduction of ions from the sprayer into the mass spectrometer ...
David V. Dearden +5 more
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Electrospray-ionization driven by dielectric polarization
Analytical and Bioanalytical Chemistry, 2008A non-conductive piezo ceramic plate has been used to induce an electric field to generate an electrospray as ionization method for mass spectrometric determination. This technique decreases the risk of undesired discharges, induced by high electric currents. The applicability of the technique is demonstrated and compared with a commercial electrospray
Dirk Janasek +2 more
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2014
Probe electrospray ionization (PESI) is an electrospray-based atmospheric-pressure surface sampling and ionization technique for mass spectrometry that uses a solid needle instead of a capillary. While ionization occurs in a fashion similar to that involved in electrospray ionization, the novel aspect of PESI is discontinuous sampling.
Mridul Kanti Mandal, Kenzo Hiraoka
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Probe electrospray ionization (PESI) is an electrospray-based atmospheric-pressure surface sampling and ionization technique for mass spectrometry that uses a solid needle instead of a capillary. While ionization occurs in a fashion similar to that involved in electrospray ionization, the novel aspect of PESI is discontinuous sampling.
Mridul Kanti Mandal, Kenzo Hiraoka
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pH Effects on Electrospray Ionization Efficiency [PDF]
Journal of the American Society for Mass Spectrometry, 2016 Electrospray ionization efficiency is known to be affected by mobile phase composition. In this paper, a detailed study of analyte ionization efficiency dependence on mobile phase pH is presented. The pH effect was studied on 28 compounds with different chemical properties.
Jaanus Liigand +2 more
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Electrospray Ionization Using Wooden Tips
Analytical Chemistry, 2011Electrospray ionization (ESI) is a mass spectrometric technique widely used in various fields including chemistry, biology, medicine, pharmaceutical industry, clinical assessment, and forensic science. In this study, we report a simple and economical ESI-mass spectrometry (MS) technique, which makes use of disposable wooden tips (wooden toothpicks) for
Bin Hu +3 more
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Desorption electrospray ionization of aerosol particles
Rapid Communications in Mass Spectrometry, 2007AbstractWe have applied desorption electrospray ionization to aerosol particles. Ions were formed from aerosols by merging suspended dry particles with an electrospray of solvent in a modified ion trap mass spectrometer. Dry aerosol particles were generated using a fluidized bed powder disperser and directed toward the inlet of the mass spectrometer. A
Yohannes H. Rezenom +2 more
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Microfabrication of polydimethylsiloxane electrospray ionization emitters
Journal of Chromatography A, 2001Microfabricated polydimethylsiloxane (PDMS) emitters for electrospray ionization mass spectrometry (ESI-MS) were implemented as tips along the edge of the PDMS device by three methods which utilize soft lithography processes. These microfabrication methods for producing PDMS emitters as an integral part of a microfluidic device will facilitate ...
Daniel R. Knapp, Jin-Sung Kim
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Electrospray Ionization: Theory and Application
1997A great deal of chemistry and most of biochemistry concerns reactions taking place in solution. The development and application of an introduction and ionization technique which allows direct sampling from solution has therefore been a prominent objective of analytical mass spectrometry for many years.
Scott G. Summerfield +3 more
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Mechanistic aspects of electrospray ionization
Journal of Chromatography A, 1998Abstract Electrospray ionization (ESI) mass spectrometry can be divided into three steps: Nebulization of a sample solution into electrically charged droplets, liberation of ions from droplets, and transportation of ions from the atmospheric pressure ionization source region into the vacuum and mass analyzer of the mass spectrometer.
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An Electrospray Ionization Source for Integration with Microfluidics
Analytical Chemistry, 2002We have demonstrated a new electrospray ionization (ESI) device incorporating a tip made from a shaped thin film, bonded to a microfluidic channel, and interfaced to a time-of-flight mass spectrometer (TOFMS). A triangular-shaped thin polymer tip was formed by lithography and etching.
David A. Czaplewski +5 more
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