Oscar Núñez

TL;DR: Preparation methods of monolithic silica columns for HPLC including the surface modification were reviewed and chemical modification methods recently reported to obtain stationary phases for reversed-phase (RP), chiral, ion-exchange, and hydrophilic interaction chromatography (HILIC) separations were discussed.

TL;DR: New trends based on fast liquid chromatography applied to the food and environmental analysis includes different column technologies, such as monolithic, sub-2 μm, porous shell, as well as different stationary phases such as reversed phase (C8 and C18), hydrophilic interaction liquid Chromatography (HILIC) and fluorinated columns.

TL;DR: A review of recent advances in the analysis and characterization of polyphenols in food focusing on the most relevant applications published in the last years is presented in this paper, where trends regarding sample treatment, chromatographic separation, mass analyzers and chemometric approaches used in the determination and characterization are addressed.

TL;DR: A prominent sector of nanotechnology is occupied by a class of carbon-based nanoparticles known as fullerenes, and there is a lack of adequate methodology for their size and shape characterisation, identification and quantitative detection in environmental and biological samples.

TL;DR: The fact that very high efficiencies were obtained for the retained solutes suggests the practical utility of these long monolithic silica capillary columns, as well as the high-efficiency separations of aromatic hydrocarbons, benzene derivatives, and a protein digest.