Academic Journals Database
Disseminating quality controlled scientific knowledge

ELEMENTAL ANALYSIS OF ENGINE OILS USING ENERGY DISPERSIVE X-RAY FLUORESCENCE SPECTROSCOPY (EDXRFS) AND INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROSCOPY (ICP-AES)

ADD TO MY LIST
 
Author(s): Richard Sági | Norbert Miskolczi | László Bartha | Pál Halmos

Journal: Petroleum and Coal
ISSN 1337-7027

Volume: 50;
Issue: 1;
Start page: 1;
Date: 2008;
VIEW PDF   PDF DOWNLOAD PDF   Download PDF Original page

Keywords: Energy dispersive X-ray fluorescence spectroscopy | Inductively coupled plasma atomic emission spectroscopy | Engine oil | Screening test

ABSTRACT
Elemental composition of various engine oils was measured by different analytical methods: energydispersive X-ray fluorescence spectroscopy (EDXRFS) and inductively coupled plasma atomic emissionspectroscopy (ICP-AES). Considerable differences were observed between the two methods. In case ofEDXRFS strong matrix effects were detected on the calibration graphs. It was found that the preliminarysample preparation (digestion) before ICP-AES analysis resulted in the poorer accuracy of this method.Taking into consideration its matrix effect the quick, simple and cost-effective EDXRFS technique, withoutthe necessity of sample preparation, was selected for analysis of engine oils during and after differentscreening tests. Complementing the screening tests of engine oils (e. g. the high temperature depositpreventing, antiwear and antifriction properties) with properly calibrated EDXFRS analysis more andimportant information could be obtained about the degradation and the efficiency of the additives.
Save time & money - Smart Internet Solutions      Why do you need a reservation system?