Publication

LEPA: From Proteomics to Energy Conversion

Hubert Girault, Liang Qiao, Fernando Cortes Salazar, Manuel Alejandro Méndez Agudelo, Anne-Laure Gassner, Mohammad Reza Pourhaghighi
2011
Journal Articles

Abstract

This review article summarizes the different fields of research at the Laboratoire d'Electrochimie Physique et Analytique at the Ecole Polytechnique Federale de Lausanne. The research areas covered include charge transfer reactions at soft interfaces, bio-analytical microchips and electrophoretic methods, electrochemical ionization methods for mass spectrometry and Scanning Electrochemical Microscopy (SECM).

Official source

https://infoscience.epfl.ch/entities/publication/fa61f7da-a355-44c7-9f8b-eb68b89077a3

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Hubert Girault, Liang Qiao, Fernando Cortes Salazar, Manuel Alejandro Méndez Agudelo, Anne-Laure Gassner, Mohammad Reza Pourhaghighi
2011
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/fa61f7da-a355-44c7-9f8b-eb68b89077a3

About this result

Related concepts (14)

Mass spectrometry

Mass spectrometry (MS) is an analytical technique that is used to measure the mass-to-charge ratio of ions. The results are presented as a mass spectrum, a plot of intensity as a function of the mass-to-charge ratio. Mass spectrometry is used in many different fields and is applied to pure samples as well as complex mixtures. A mass spectrum is a type of plot of the ion signal as a function of the mass-to-charge ratio.

Electrospray ionization

Electrospray ionization (ESI) is a technique used in mass spectrometry to produce ions using an electrospray in which a high voltage is applied to a liquid to create an aerosol. It is especially useful in producing ions from macromolecules because it overcomes the propensity of these molecules to fragment when ionized. ESI is different from other ionization processes (e.g. matrix-assisted laser desorption/ionization (MALDI)) since it may produce multiple-charged ions, effectively extending the mass range of the analyser to accommodate the kDa-MDa orders of magnitude observed in proteins and their associated polypeptide fragments.

Ion-mobility spectrometry–mass spectrometry

Ion mobility spectrometry–mass spectrometry (IMS-MS) is an analytical chemistry method that separates gas phase ions based on their interaction with a collision gas and their masses. In the first step, the ions are separated according to their mobility through a buffer gas on a millisecond timescale using an ion mobility spectrometer. The separated ions are then introduced into a mass analyzer in a second step where their mass-to-charge ratios can be determined on a microsecond timescale.

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