Quality-assurance procedures for graphite-furnace atomic-absorption spectrometry.
A procedure is described for quality-control in graphite-furnace atomic-absorption spectrometry. It uses an NBS standard reference material to avoid errors in standard preparation, and very simple instrumental conditions, with no matrix modifier or pyrolysis step. The characteristic mass and the Zeeman ratio are calculated for Ag, Cu, and Cr, and deviations from the expected values for these quantities are correlated with potential instrumental malfunctions.
Slavin
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The Perkin-Elmer Corporation, 901 Ethan Allen Highway, Ridgefield, CT 06877, U.S.A.
Manning
D C
DC
Carnrick
G R
GR