title: Determination of molecular nitrogen by electron-impact induced fluorescence.
abstract: When a sample of nitrogen gas is bombarded by 100-eV electrons, fluorescent emission from the nitrogen molecular ion, N(+)(2), is observed. The intensity of this fluorescence can be related to the pressure (or molar concentration) of the parent molecule, N(2). The limit of detection for N(2) by means of electron-impact induced fluorescence is 5.0 x 10(-8)mmHg (1.6 x 10(9) molecules/cm(3) or 2.7 x 10(-12) mole/l.). The fluorescence signal is linearly related to N(2) pressure over a range of four orders of magnitude, and relative standard deviations of less than 2% are observed for replicate measurements.
authors.affiliation: Department of Chemistry, University of Tennessee, Knoxville, TN 37996, U.S.A.
authors.forename: D A
authors.initials: DA
authors.lastname: Radspinner
authors.forename: E L
authors.initials: EL
authors.lastname: Wehry