Linked Life Data

12572804

Source:http://linkedlifedata.com/resource/pubmed/id/12572804

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2003-2-7
pubmed:abstractText
A pulsed corona discharge ionisation source, a candidate replacement for 63Ni ionisation sources for ion mobility spectrometry, is described along with a new design of ion mobility spectrometer-mass spectrometer. Preliminary research on the characterisation of the reactant ion peaks associated with the use of this ionisation source was undertaken by assembling a pulsed corona discharge ionisation switchable high-resolution ion mobility spectrometer-mass spectrometer to enable the mobility spectra, atmospheric chemical ionisation mass spectra and selected-mass mobility spectra to be obtained. With ammonia doping at 2.39 mg m(-3) in air and a water content of approximately 80 mg m(-3) in the positive mode the observed response was attributable to the formation of 1(H2O)(n)NH4]+ and [(H2O)n(NH3)NH4]+ in the reaction region. The observed responses in the negative mode were more complex with evidence for the formation [(H2O)(n)O2]-, [(H2O)(n)CO3]-, [(H2O)(n)HCO3]-, [(H2O)(n)CO4]- and [(H2O)(n)NO3]-. The responses due to these species were clearly discernible in the resultant mobility spectra, with enough oxygen-based species formed to support analytically useful responses.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Jan
pubmed:issn
0003-2654
pubmed:author
pubmed:issnType
Print
pubmed:volume
128
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
55-60
pubmed:dateRevised
2003-11-4
pubmed:year
2003
pubmed:articleTitle
A pulsed corona discharge switchable high resolution ion mobility spectrometer-mass spectrometer.
pubmed:affiliation
Department of Instrumentation and Analytical Science, UMIST, PO Box 88, Manchester, UK M60 1QD.
pubmed:publicationType
Journal Article