Lubricating oil is given functional properties for specific purposes by mixing additives with base oil. Therefore, it is very important to control concentrations of additive elements in lubricating oil production plants.
X-ray fluorescence (XRF) spectrometry has been used for quantitative analysis of additive elements such as Mg, P and Zn in lubricating oil owing to the high precision and simple sample preparation of XRF analysis. In XRF analysis of lubricating oil, a sample is simply poured into a liquid cell. No complicated treatment, such as chemical decomposition or dilution, is required.
This application note demonstrates quantitative analysis of lubricating oil according to ASTM D6443-14 on the Rigaku ZSX Primus
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