Determination of wear metals in lubrication oils: a comparison study of ICP-OES and FAAS. |
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| Authors: | Pekka V?h?oja Ilkka V?lim?ki Katri Heino Paavo Per?m?ki Toivo Kuokkanen |
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| Institution: | University of Oulu, Department of Chemistry, Finland. pekka.vahaoja@oulu.fi |
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| Abstract: | Certain wear metals (Fe, Cr, Ni, Cu and Zn) of various lubrication oils were determined by means of ICP-OES and FAAS. The kerosene dilution method, which is used widely together with ICP-OES, was applied with both methods here. Calibration standards were made from a commercial organo-metallic standard. Our aim was to clarify the possibility of using the quick kerosene dilution method together with FAAS for a rapid check for certain indicator metals. Metal determinations with FAAS were accurate enough for quantitative work in machine condition diagnostics and waste oil characterization, when compared with those with ICP-OES. |
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