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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Separation of glycosidic catiomers by TWIM-MS using CO2 as a drift gas

Full text
Author(s):
Bataglion, Giovana A. [1] ; Martins Ferreira Souza, Gustavo Henrique [2] ; Heerdt, Gabriel [3] ; Morgon, Nelson H. [3] ; Lisboa Dutra, Jose Diogo [4, 5] ; Freire, Ricardo Oliveira [4] ; Eberlin, Marcos N. [1] ; Tata, Alessandra [1]
Total Authors: 8
Affiliation:
[1] Univ Campinas UNICAMP, Inst Chem, ThoMSon Mass Spectrometry Lab, BR-13084971 Campinas, SP - Brazil
[2] Waters Corp, Applicat Lab Brazil, Sao Paulo, SP - Brazil
[3] Univ Campinas UNICAMP, Inst Chem, Campinas, SP - Brazil
[4] Univ Fed Sergipe, Dept Quim, Pople Computat Chem Lab, BR-49100000 Sao Cristovao, SE - Brazil
[5] Univ Fed Pernambuco, Dept Quim Fundamental, UFPE, BR-50590470 Recife, PE - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Journal of Mass Spectrometry; v. 50, n. 2, p. 336-343, FEB 2015.
Web of Science Citations: 11
Abstract

Traveling wave ion mobility mass spectrometry (TWIM-MS) is shown to be able to separate and characterize several isomeric forms of diterpene glycosides stevioside (Stv) and rebaudioside A (RebA) that are cationized by Na+ and K+ at different sites. Determination and characterization of these coexisting isomeric species, herein termed catiomers, arising from cationization at different and highly competitive coordinating sites, is particularly challenging for glycosides. To achieve this goal, the advantage of using CO2 as a more massive and polarizable drift gas, over N-2, was demonstrated. Post-TWIM-MS/MS experiments were used to confirm the separation. Optimization of the possible geometries and cross-sectional calculations for mobility peak assignments were also performed. Copyright (c) 2015 John Wiley \& Sons, Ltd. (AU)

FAPESP's process: 11/06191-7 - MALDI-TOF and ESI-MS fingerprinting for bacteria identification in culture media and semen as a tool for sanitary excelence in bovine embryo in vitro production
Grantee:Alessandra Tata
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 12/21395-0 - Molecular characterization of sedimentary organic matter in the Estuary-Lagoon System Cananéia-Iguape by Fourier transform ion cyclotron resonance mass spectrometry
Grantee:Giovana Anceski Bataglion
Support Opportunities: Scholarships in Brazil - Doctorate