A Comparison of Five Spectrochemical Methods for the Analysis of High-Purity Zinc

Authors: Gabler, R. C.; Peterson, M. J.

Source: Applied Spectroscopy, Volume 22, Issue 1, Pages 1-67 (January/February 1968) , pp. 19-23(5)

Publisher: Society for Applied Spectroscopy

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Abstract:

A comparison was made of five optical spectrographic methods for the analysis of high-purity zinc. Analytical capability was required for the determination of Ag, Al, Cd, Cu, Fe, Hg, Mg, Pb, and Sn in the range from 1 to 100 ppm. The factors considered were: sensitivity of detection, handling ease, possible sources of contamination, analysis time, and precision and accuracy. The data show that a metal-direct arcing procedure is rapid, has high sensitivity of detection, and requires a minimum of sample handling. Solution-residue dc arc, point-to-plane ignited ac arc, and zinc oxide dc-arc procedures gave better reproducibility, but lacked the required sensitivity of detection.

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370268774383831

Affiliations: College Park Metallurgy Research Center, College Park, Maryland 20740

Publication date: January 1, 1968

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