Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/199830
Type: Artigo de periódico
Title: Resolution Of Isomeric Multi-ruthenated Porphyrins By Travelling Wave Ion Mobility Mass Spectrometry.
Author: Lalli, Priscila M
Iglesias, Bernardo A
Deda, Daiana K
Toma, Henrique E
de Sa, Gilberto F
Daroda, Romeu J
Araki, Koiti
Eberlin, Marcos N
Abstract: The ability of travelling wave ion mobility mass spectrometry (TWIM-MS) to resolve cationic meta/para and cis/trans isomers of mono-, di-, tri- and tetra-ruthenated supramolecular porphyrins was investigated. All meta isomers were found to be more compact than the para isomers and therefore mixtures of all isomeric pairs could be properly resolved with baseline or close to baseline peak-to-peak resolution (R(p-p)). Di-substituted cis/trans isomers were found, however, to present very similar drift times and could not be resolved. N(2) and CO(2) were tested as the drift gas, and similar α but considerably better values of R(p) and R(p-p) were always observed for CO(2).
Subject: Carbon Dioxide
Isomerism
Mass Spectrometry
Models, Molecular
Nitrogen
Porphyrins
Ruthenium
Rights: fechado
Identifier DOI: 10.1002/rcm.5314
Address: http://www.ncbi.nlm.nih.gov/pubmed/22223311
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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