Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/342283
Type: Artigo
Title: Improving the sensitivity of FESTA methods for the analysis of fluorinated mixtures
Author: Barbosa, T.M.
Castañar, L.
Moutzouri, P.
Nilsson, M.
Morris, G.A.
Rittner, R.
Tormena, C.F.
Abstract: The analysis of complex mixtures is an important but often intractable problem. When species contain sparse fluorine atoms, NMR spectra of fluorine-containing spin systems can be efficiently extracted from an intact mixture using the recently proposed FESTA (Fluorine-Edited Selective TOCSY Acquisition) methodology. Here an alternative approach to the existing selective reverse INEPT FESTA (SRI-FESTA) experiment is described, based on the use of a modulated spin echo for the initial excitation. MODO-FESTA (modulated echo FESTA) is simpler and has a significant sensitivity advantage over SRI-FESTA. Comparisons are presented of the relative sensitivity and spectral purity of the two types of methods
Subject: Flúor
Country: Estados Unidos
Editor: American Chemical Society
Rights: Fechado
Identifier DOI: 10.1021/acs.analchem.9b04924
Address: https://pubs.acs.org/doi/10.1021/acs.analchem.9b04924
Date Issue: 2020
Appears in Collections:IQ - Artigos e Outros Documentos

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