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A Comparison of Boosted-Discharge Hollow Cathode Lamps and an ICP as Excitation Sources in ICP-AES
Spectrochimica Acta Part B (1990)
  • Julian Tyson
  • S. Greenfield, Loughborough University of Technology
  • T M Durrani, Loughborough University of Technology
  • C A Watson
Abstract
Copper, nickel and lead boosted-discharge hollow cathode lamps, run at recommended currents, have
been compared with a high-powered inductively coupled plasma (ICP) as excitation sources in atomic fluorescence
spectrometry (AFS). A similar comparison was made with a copper lamp run at higher currents. It was found that
for lead and nickel, the fluorescence spectra differed in the relative intensities of the transitions observed with the
two sources. No evidence was found for a difference in radiances between the two sources when the lamp was overrun.
Although the lamps gave rise to lower blank standard deviation values, detection limits were worse because of
poorer sensitivity due to the inability of the circular source to illuminate the required atom cell volume in the
atomiser. It was concluded that the ICP was the better source, when the criterion is detection limits, but the lamps
may be more convenient in some circumstances.
Keywords
  • Comparison,
  • Chemistry,
  • ICP,
  • ICP-AES
Publication Date
1990
Citation Information
Julian Tyson, S. Greenfield, T M Durrani and C A Watson. "A Comparison of Boosted-Discharge Hollow Cathode Lamps and an ICP as Excitation Sources in ICP-AES" Spectrochimica Acta Part B Vol. 45B (1990) p. 341
Available at: http://works.bepress.com/julian_tyson/9/