A significant production of gas-phase dicarboxylate dianions has been observed in standard ESI and DESI during the analysis of small organic dicarboxylic acids under moderate or highly alkaline conditions. In ESI, this can be attributed to an excess of hydroxyl ions (OH–) which favor the formation of an high amount of dianions in solution, contemporarily trapping the potential counter ions during the ESI process. The results obtained in DESI highlight the role of the surface in trapping the counterions during desorption process and determining the ultimate nature of the observed gas-phase ions

Dong, Y.; Guella, G.; Mattivi, F.; Franceschi, P. (2015). High production of small organic dicarboxylate dianions by DESI and ESI. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY, 26 (3): 386-389. doi: 10.1007/s13361-014-1065-y handle: http://hdl.handle.net/10449/24873

High production of small organic dicarboxylate dianions by DESI and ESI

Dong, Yonghui;Mattivi, Fulvio;Franceschi, Pietro
2015-01-01

Abstract

A significant production of gas-phase dicarboxylate dianions has been observed in standard ESI and DESI during the analysis of small organic dicarboxylic acids under moderate or highly alkaline conditions. In ESI, this can be attributed to an excess of hydroxyl ions (OH–) which favor the formation of an high amount of dianions in solution, contemporarily trapping the potential counter ions during the ESI process. The results obtained in DESI highlight the role of the surface in trapping the counterions during desorption process and determining the ultimate nature of the observed gas-phase ions
Dicarboxylates
Gas-phase dianions
ESI
DESI
Mass spectrometry
Settore CHIM/01 - CHIMICA ANALITICA
2015
Dong, Y.; Guella, G.; Mattivi, F.; Franceschi, P. (2015). High production of small organic dicarboxylate dianions by DESI and ESI. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY, 26 (3): 386-389. doi: 10.1007/s13361-014-1065-y handle: http://hdl.handle.net/10449/24873
File in questo prodotto:
File Dimensione Formato  
ASMS-D-14-00196.pdf

solo utenti autorizzati

Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 1.43 MB
Formato Adobe PDF
1.43 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10449/24873
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 7
  • ???jsp.display-item.citation.isi??? 6
social impact