Linked Life Data

19189352

Source:http://linkedlifedata.com/resource/pubmed/id/19189352

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2009-2-12
pubmed:abstractText
Three-dimensional computer models of electrospray ionization sources were constructed in COMSOL Multiphysics to solve the static electric fields using finite element methods. The magnitude of the electric field strength for onset of electrospray and optimum signal was calculated under various conditions. The modification of the electric field distribution in the ion source by an atmospheric pressure ion lens was also investigated by plotting the equipotential surfaces, electric field lines and trajectories of charged droplets. Both the calculated and the experimental results demonstrate that the changes in the ion signal detected by the mass spectrometer are attributable to the focusing effect of the ion lens when appropriate voltages are applied on the sprayer and ion lens. The optimum signal was found by setting the sprayer voltage from 3000 to 5000 V while scanning the ion lens voltage. The calculated strengths of the electric field at the sprayer tip for optimum signals are similar although the applied voltages at the sprayer and ion lens are significantly different.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Mar
pubmed:issn
0951-4198
pubmed:author
pubmed:copyrightInfo
John Wiley & Sons, Ltd
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
689-97
pubmed:year
2009
pubmed:articleTitle
Field distribution in an electrospray ionization source determined by finite element method.
pubmed:affiliation
Department of Chemistry, University of British Columbia, Vancouver, BC, Canada V6T 1Z1.
pubmed:publicationType
Journal Article