Determination of the Content of Wear Metal in Lubrication Oil by ICP-AES
ZHAO Jin-wei1, 2，CHENG Wei2，FENG Ya-hui2
1. Department of Materials Science & Engineering, Nanjing University of Science and Technology, Nanjing 210094，China 2. Jiangsu Entry-Exit Inspection and Quarantine Bureau, Nanjing 210001，China
Abstract：An analytical method for determining wear metal elements directly by ICP-AES was proposed in this paper. The optimum condition was selected. The Conostan S-21 and Conostan 75 (oil-base standard samples) prepared by multi-element oil-base reserved standard samples were applied to make calibration curve. Oil samples were diluted 5 times by kerosene. The contents of wear metals in lubrication oil were determined by ICP-AES. The relative standard deviation (RSD) of all elements was less than 1%. In addition, the authors represented the analytical efficacy of Leeman labs multi-track profile ICP, and its rapid and accurate characters of simultaneous multi-element measurement.
Key words：ICP-AES;Determination;Lubrication oil;Wear metal
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