The Determination of Iron in Used Lubricating Oil

Author: Golden, Gerald S.

Source: Applied Spectroscopy, Volume 25, Issue 6, Pages 593-680 (November/December 1971) , pp. 668-671(4)

Publisher: Society for Applied Spectroscopy

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Abstract:

Iron analyses performed on used gas turbine lubricating oil samples by several variations of rotating disk-spark emission spectrography, atomic absorptiometry, and x-ray fluorescence spectrometry are compared with a quantitative wet chemical technique. The results indicate that emission spectrography with a cobalt internal standard, atomic absorptiometry with a nitrous oxide-acetylene flame, and x-ray fluorescence, both dispersive and nondispersive, are the most reliable instrumental methods. The iron contained in the samples exists primarily as particulates 1 μ or less in diameter.

Keywords: Emission spectrography; Atomic absorption; X-ray fluorescence; Methods, analytical for iron-in-oil

Document Type: Research article

DOI: http://dx.doi.org/10.1366/000370271779950977

Affiliations: 1: United Aircraft Research Laboratories, East Hartford, Connecticut 06108

Publication date: 1971-11-01

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