Modulations in the abundance of salt clusters in electrosprays

Citation
M. Gamero-castano et Jf. De La Mora, Modulations in the abundance of salt clusters in electrosprays, ANALYT CHEM, 72(7), 2000, pp. 1426-1429
Citations number
23
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYTICAL CHEMISTRY
ISSN journal
00032700 → ACNP
Volume
72
Issue
7
Year of publication
2000
Pages
1426 - 1429
Database
ISI
SICI code
0003-2700(20000401)72:7<1426:MITAOS>2.0.ZU;2-Q
Abstract
The abundance of tetraheptylammonium bromide clusters produced from formami de solutions by electrospray ionization (ESI) is investigated. It exhibits a wavy pattern when plotted as a function of cluster size, successive waves being ordered according to the initial cluster charge z. This structure co nfirms the ion evaporation mechanism of Iribarne and Thomson and simplifies drastically the determination of the distribution of cluster charge z and radius R, from which the kinetics of ion evaporation from charged drops can be inferred.