Determination of wear metals in lubrication oils: a comparison study of ICP-OES and FAAS.
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.
Vähäoja
Pekka
P
University of Oulu, Department of Chemistry, Finland. pekka.vahaoja@oulu.fi
Välimäki
Ilkka
I
Heino
Katri
K
Perämäki
Paavo
P
Kuokkanen
Toivo
T
D002857:Chromium / Q000032:analysis; D003300:Copper / Q000032:analysis; D007219:Industrial Oils / Q000032:analysis*; D007501:Iron / Q000032:analysis; D016014:Linear Models; D008153:Lubrication; D008670:Metals / Q000032:analysis*; D008899:Mineral Oil / Q000032:analysis; D009532:Nickel / Q000032:analysis; D015203:Reproducibility of Results; D013054:Spectrophotometry, Atomic / Q000379:methods*; D013057:Spectrum Analysis / Q000379:methods*; D015032:Zinc / Q000032:analysis
D008670:Metals; D002857:Chromium; D003300:Copper; D009532:Nickel; D008899:Mineral Oil; D007501:Iron; D015032:Zinc