DEVELOPMENT OF A 13C-NMR SPECTROSCOPIC METHOD FOR ESTIMATION OF HEAVYALKYLATED BENZENE (HAB) IN INDUSTRIAL OILS USING STEPWISE MULTIPLE LINEAR-REGRESSION

Authors
KAPUR GS MUKHERJEE S SARPAL AS JAIN SK
Citation
Gs. Kapur et al., DEVELOPMENT OF A 13C-NMR SPECTROSCOPIC METHOD FOR ESTIMATION OF HEAVYALKYLATED BENZENE (HAB) IN INDUSTRIAL OILS USING STEPWISE MULTIPLE LINEAR-REGRESSION, Lubrication engineering, 54(5), 1998, pp. 21-28
Citations number
6
Categorie Soggetti
Engineering, Mechanical
Journal title
Lubrication engineering → ACNP
ISSN journal
00247154
Volume
54
Issue
5
Year of publication
1998
Pages
21 - 28
Database
ISI
SICI code
0024-7154(1998)54:5<21:DOA1SM>2.0.ZU;2-7
Abstract
The chemometric procedure, stepwise multiple linear regression, was us ed for the analysis of a complex hydrocarbon mixture of lubricating ba sestock components. The method allows the use of 13C-NMR spectroscopy for the precise estimation of heavy alkylated benzenes (HAB) in indust rial oils. Two separate models were developed: one applicable for the estimation of HAB in paraffinic mineral oils and the other in naphthen ic basestocks (refrigeration oils). The two models can predict the per centage of HAB with a standard error of 3 and 2.6% in the respective b lends of paraffinic and naphthenic mineral base oils.