Determination of Major Metals Contents in Engine Lubricating Oil Based on Atomic Absorption Spectroscopy

Li Dan Chen; Yao Jun Zheng

doi:10.4028/www.scientific.net/AMR.496.472

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 496Determination of Major Metals Contents in Engine...

Determination of Major Metals Contents in Engine Lubricating Oil Based on Atomic Absorption Spectroscopy

Abstract:

In this paper, graphite oven atomic absorption spectroscopy was adopted to determine typical metals contents, iron (Fe), aluminum (Al), chromium (Cr), in engine lubricating oil for a rapid evaluation about engine wearing conditions. Samples were made into translucent micro-emulsion by adding Tween 80 and 1% nitric acid solution, and then Fe, Al and Cr contents were determined. The recovery rate of standard addition method was achieved as high as 95.3% to 101.1%, and relative standard deviation (RSD) of six times parallel tests were all less than 3%. The results indicated that the adoption of atomic absorption spectroscopy to predict engine wearing condition acquired the following advantages: high sensitivity, simple operation, pinpoint accuracy and excellent reproducibility.

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Periodical:

Advanced Materials Research (Volume 496)

Pages:

472-475

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.496.472

Citation:

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Online since:

March 2012

Authors:

Li Dan Chen, Yao Jun Zheng

Keywords:

Contents Determination, Engine Lubricating Oil, Graphite Oven Atomic Absorption Spectroscopy, Major Metals Contents

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