Application of chemometrics and FTIR for determination of viscosity index and base number of motor oils

被引：45

作者：

Al-Ghouti, Mohammad Ahamd ^{[1
]}

Al-Degs, Yahya Salim ^{[2
]}

Amer, Mohammad ^{[1
]}

机构：

[1] Royal Sci Soc, Ind Chem Ctr, Amman 11941, Jordan

[2] Hashemite Univ, Sch Chem, Zarqa, Jordan

来源：

TALANTA | 2010年 / 81卷 / 03期

关键词：

Motor oil; Base number; Viscosity index; Multivariate calibration; ASTM; FTIR; NEAR-INFRARED SPECTROSCOPY; DIESEL FUEL; BIODIESEL; MIXTURES; QUALITY;

D O I：

10.1016/j.talanta.2010.02.003

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The viscosity index (VI) and the base number (BN) of motor oils are the most important parameters to be measured in order to assess their performance and service time. Both parameters were simply obtained for virgin and recycled motor oil samples using multivariate calibration based on the FTIR data. Analysis showed that the PLS-1 has outperformed CLS and PCR for the oil parameters prediction. Five and four PLS-1 latent variables were found optimum to obtained the VI and the BN from the FTIR data: respectively. With high accuracy (99-102%) and precision (3-11%), the BN could be determined over the range 4.57-16.45 mg KOH g(-1) and the VI over the range 96-153. The outputs of the PLS-1 were found comparable to those obtained by the expensive and time-consuming ASTM methods. This developed method is highly recommended for quick monitoring of the motor oil quality parameters. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：1096 / 1101

页数：6

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