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Title: Absolute number density calibration of the absorption by ground-state lead atoms of the 283. 3-nm resonance line from a high-intensity lead hollow cathode lamp and the calculated effect of argon pressures

Journal Article · · Journal of Physical Chemistry; (United States)
DOI:https://doi.org/10.1021/j100159a045· OSTI ID:5757063
;  [1];  [2]
  1. New Mexico State Univ., Las Cruces (United States)
  2. Los Alamos National Lab., NM (United States)

The absolute number density calibration for the absorption by ground-state lead atoms of the 283.3-nm resonance line from a high-intensity lead hollow cathode lamp (Photron superlamp) is determined and found to be the same as that of a standard hollow cathode lamp. Comparisons of the calibrations to theoretical calculations are found to be quite satisfactory. The effects of argon pressures in the absorption cell on the calibration are examined theoretically by using a simple Lorentzian broadening and shifting model. These calculations show the expected reduction in sensitivity and increasing linearity of Beer-Lambert plots with increasing argon pressure.

OSTI ID:
5757063
Journal Information:
Journal of Physical Chemistry; (United States), Vol. 95:6; ISSN 0022-3654
Country of Publication:
United States
Language:
English