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 counter-ions during desorption process and determining the ultimate nature of the observed gas-phase ions.

High Production of Small Organic Dicarboxylate Dianions by DESI and ESI / Dong, Yonghui; Guella, Graziano; Mattivi, Fulvio; Franceschi, Pietro. - In: JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY. - ISSN 1044-0305. - STAMPA. - 26:3(2015), pp. 386-389. [10.1007/s13361-014-1065-y]

High Production of Small Organic Dicarboxylate Dianions by DESI and ESI

Dong, Yonghui;Guella, Graziano;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 counter-ions during desorption process and determining the ultimate nature of the observed gas-phase ions.
2015
3
Dong, Yonghui; Guella, Graziano; Mattivi, Fulvio; Franceschi, Pietro
High Production of Small Organic Dicarboxylate Dianions by DESI and ESI / Dong, Yonghui; Guella, Graziano; Mattivi, Fulvio; Franceschi, Pietro. - In: JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY. - ISSN 1044-0305. - STAMPA. - 26:3(2015), pp. 386-389. [10.1007/s13361-014-1065-y]
File in questo prodotto:
File Dimensione Formato  
Dong_et_al_JASMS_2015.pdf

Solo gestori archivio

Descrizione: articolo versione editoriale
Tipologia: Versione editoriale (Publisher’s layout)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 1.02 MB
Formato Adobe PDF
1.02 MB Adobe PDF   Visualizza/Apri

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/11572/101205
Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 7
  • ???jsp.display-item.citation.isi??? 6
social impact