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Elsevier, Chemometrics and Intelligent Laboratory Systems, 2(106), p. 210-215

DOI: 10.1016/j.chemolab.2010.08.017

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Combination of mid-infrared spectroscopy and curve resolution method to follow the antioxidant action of alkylated diphenylamines

Journal article published in 2011 by N. Gracia, S. Thomas, F. Thibault-Starzyk ORCID, O. Lerasle, L. Duponchel
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The inhibition of the oxidation of lubricating base oils by dinonyldiphenylamine has been studied by combined Fourier transform infrared (FTIR) spectroscopy and multivariate curve resolution-alternating least squares (MCR-ALS) method. This allowed to extract chemical information during the induction period. The substituted diphenylamines are progressively converted to a degraded form which can be followed with the chemometric analysis. When concentration of dinonyldiphenylamine is too low, the induction period ends and the oxidation of the base oils begins.