Chemical Ionization Ion Cluster Mass Spectrometry
Abstract
An extension of the technique of chemical ionization mass spectrometry utilizing moist N2 or air as the reactant gas has been studied. Ionic clustering reactions involving protonated water clusters and trace quantities of organic impurities are initiated in a corona discharge at pressures ranging from 20 to 220 Torr. The ionic reaction products are analyzed with a quadrupole mass spectrometer. A mechanism is proposed for the formation of ions of the type H(+)(H2O)x(A)y where A is the trace impurity. Results of detection studies on dimethyl methylphosphonate (concentration = 0.6 mole parts per million or 3.3 micro g/l) and dimethyl sulfoxide are reported.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1972
- Accession Number
- AD0743453
Entities
People
- Charles S. Harden
- Thomas C. Imeson