Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Frédéric Progent"'
Autor:
Romain Mahieu, Laurent Duraffourg, Hadley Videlier, Sebastien Vigne, Charles-Marie Tassetti, Thomas Alava, Frédéric Progent
Publikováno v:
International Journal of Mass Spectrometry. 422:170-176
This paper presents the optimization of the ionization, extraction and focalization of our new generation of microfabricated time-of-flight mass spectrometer (μ-TOF). Using electron impact ionization, we show ionization efficiencies in the range of
Publikováno v:
Sensors and Actuators B: Chemical. 243:690-695
This study reports the optimization of the first stages of a MEMS-based, microfabricated time-of-flight mass spectrometer. The authors present an acceptable match between simulations and experimental results. It validates the use of simulations as a
Autor:
Jean-Sébastien Danel, Xavier Machuron-Mandard, Olivier Peyssonneaux, Jean-Philippe Polizzi, Frédéric Progent, Romain Mahieu, Charles-Marie Tassetti, Laurent Duraffourg
Publikováno v:
Sensors and Actuators B: Chemical. 189:173-178
An electron impact ion source has been fabricated using MEMS technology. The chosen fabrication process allows for manufacturing simultaneously and collectively the ion source and the analyser on the same substrate. A small and compact micro time-of-
Autor:
Charles-Marie Tassetti, Brigitte Desloges, Frédéric Progent, Sebastien Vigne, Marc Gely, Romain Mahieu, Thomas Alava, Christophe Moulin, Laurent Duraffourg
Publikováno v:
2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE).
This work shows the optimization, both by simulations and experimentally of the ion source optics of a miniaturized time-of-flight mass spectrometer. The simulations are used to speed up the experiments and make them more efficient in finding optimal
Publikováno v:
Journal of Chromatography A. 1136:221-225
Retention behaviour of biological peptides was investigated on a stationary phase bearing an embedded quaternary ammonium group in a C21 alkyl chain by both high-performance liquid chromatography (HPLC) and capillary electrochromatography (CEC). In H
Autor:
Françoise Leprince, Xavier Machuron-Mandard, Maxime C. Bridoux, Frédéric Progent, Hélène Malandain
Publikováno v:
Analytica chimica acta. 869
A novel hyphenated technique, namely the combination of stir bar sorptive extraction (SBSE) with isotope dilution direct analysis in real time (DART) Orbitrap™ mass spectrometry (OT-MS) is presented for the extraction of phosphoric acid alkyl ester
Publikováno v:
Electrophoresis. 27(4)
Different models have been described in the literature to evaluate the total porosity of CEC columns: gravimetric, flow as well as conductivity-based methods. In this study, these models have been compared for two kinds of CEC columns: two mixed-mode
Autor:
Frédéric Progent, Myriam Taverna
Publikováno v:
Journal of chromatography. A. 1052(1-2)
The potential of a silica stationary phase bearing an embedded cationic quaternary amine in dodecacyl chain, to separate peptides by capillary electrochromatography (CEC) has been evaluated. The ability of this stationary phase, to generate a consist
Publikováno v:
Electrophoresis. 23(6)
We have investigated the potential of affinity capillary electrophoresis (ACE) to evaluate binding constants between an anionic polydispersed polymer and four peptides. Nonlinear regression and three current linearization methods, the y-reciprocal, t
Autor:
Olivier Peyssonneaux, Frédéric Progent, Charles-Marie Tassetti, Laurent Duraffourg, Xavier Machuron-Mandard, Jean-Sébastien Danel
Publikováno v:
Procedia Engineering. :538-541
This electron impact ion source has been fabricated using the MEMS technology. The chosen process is fully compatible with the reflectron's fabrication so that the ion source could be integrated into a micro-Time-Of-Flight mass spectrometer used for