Jérémie Ponthus

TL;DR: In this paper, the polydispersity of products in terms of both chemical structures and molecular weights has been characterized through a new analytical approach combining chromatographic and spectrometric techniques (Fourier transform ion cyclotron mass spectrometry FT-ICR/MS, NMR).

TL;DR: Comprehensive on-line two-dimensional liquid chromatography was used for the characterization of bio-oils obtained by fast pyrolysis of lignocellulosic biomass, and the best of both techniques was applied to the separation of the aqueous phase of a partially dehydroxygenated bio-oil.

TL;DR: The potential and limitations of hyphenated techniques are highlighted in this paper, particularly concerning sensitivity and selectivity, and potential sources of contamination and analytical artifacts in silicon determination are reviewed.

TL;DR: In this article, an analytical multi-technique approach was developed in order to describe as fully as possible the composition of several fast pyrolysis oils using the same three lignocellulosic biomass materials (i.e., hardwood, softwood and wheat straw).

TL;DR: In this paper, bidimensional chromatography (GC) and 13 C nuclear magnetic resonance (NMR) were used to analyze four cuts of coal liquid with the following boiling points intervals: heavy naphtha (initial boiling point: IBP-215 °C), gas oil (215 Â)-343 Â c), vacuum gasoil (343 − Âc), and vacuum residue (524 + ÂC).