Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Jeferson A. Valencia-Dávila"'
Autor:
Benjamin L. Oyler, Jeferson A. Valencia-Dávila, Eirini Moysi, Adam Molyvdas, Kalliopi Ioannidou, Kylie March, David Ambrozak, Laurence De Leval, Giulia Fabozzi, Amina S. Woods, Richard A. Koup, Constantinos Petrovas
Publikováno v:
iScience, Vol 26, Iss 8, Pp 107261- (2023)
Summary: Secondary human lymphoid tissue immune reactions take place in a highly coordinated environment with compartmentalization representing a fundamental feature of this organization. In situ profiling methodologies are indispensable for the unde
Externí odkaz:
https://doaj.org/article/ae7787be0d6b45b3a846fa4f71bcc74c
Autor:
Benjamin L. Oyler, Jeferson A. Valencia-Dávila, Eirini Moysi, Adam Molyvdas, Kalliopi Ioannidou, Kylie March, David Ambrozak, Laurence de Leval, Giulia Fabozzi, Amina S. Woods, Richard A. Koup, Constantinos Petrovas
Secondary human lymphoid tissue immune reactions take place in a highly coordinated environment with compartmentalization representing a fundamental feature of this organization.In situprofiling methodologies are indispensable for the understanding o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e22c0af3373074a494a7418d80971bcb
https://doi.org/10.1101/2022.11.01.514691
https://doi.org/10.1101/2022.11.01.514691
Publikováno v:
Fuel. 231:126-133
Naphthenic acid (NA) fractions from heavy crude oils are typically analyzed in mass spectrometry via electrospray ionization (ESI). Here, we show that NA analysis is also possible by MALDI using a highly basic matrix (proton sponge). When compared wi
Autor:
Cristian Blanco-Tirado, Marianny Y. Combariza, Jeferson A. Valencia-Dávila, Camila F. Medina-Sandoval
Publikováno v:
Fuel. 231:297-306
We present a two-step method to prepare a hydrophobic cellulosic membrane involving a SiO2 sol-gel process, to increase surface roughness, followed by grafting of hexadecyltrimethoxysilane groups to chemically enhance the membrane’s water repellenc
Publikováno v:
Fuel. 193:168-177
We report on a matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF) method to analyze naphthenic acids (NAs), from petrochemical samples, using 9-aminoacridine (9-AA) and a proton sponge 1,8-bis(dimethylamino) naph
Autor:
Rosana Cardoso Lopes Pereira, Lucilia Kato, Luiza Torres Abrantes, Boniek G. Vaz, Carla Santos de Freitas, Jeferson A. Valencia-Dávila
Publikováno v:
Fuel. 289:119783
Extraction and fractionation of sulfur-containing compounds from vacuum gas oil were carried out by using non-reactive methods such as ligand exchange chromatography (LEC) on solid-phase extraction cartridges and a molecularly imprinted polymer (MIP)
Autor:
Carla Santos de Freitas, Rodrigo Cabral da Silva, Lilian Valadares Tose, Taynara Rodrigues Covas, Jeferson A. Valencia-Dávila, Ygor dos Santos Rocha, Mario Duncan Rangel, Boniek G. Vaz
Publikováno v:
Fuel. 267:117289
Polar compounds from three Brazilian crude oils were isolated and separated into seven fractions according to the polarity (low polarity-LP, low medium polarity-LMP, high medium polarity-HMP, high polarity-HP, basic-BAS, acidic-AC) by using hetero-me
Autor:
Taynara Rodrigues Covas, Ygor dos Santos Rocha, Rosana Cardoso Lopes Pereira, Boniek G. Vaz, André L. D. Spigolon, Mario Duncan Rangel, Jeferson A. Valencia-Dávila
Publikováno v:
Fuel. 254:115685
Ultrahigh-resolution Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) allows the molecular-level characterization of ultracomplex mixtures such as crude oil samples. By combining FT-ICR MS with electrospray ionization, a myriad