高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

自动回流萃取-MPT全谱仪测定航空润滑油中磨损金属的含量

汪淑华, 冯国栋, 邹向宇, 姜杰, 郇延富, 窦文超, 金钦汉   

  1. 吉林大学化学学院微分析仪器研究所, 吉林省光谱分析仪器工程技术研究中心, 长春 130021
  • 收稿日期:2005-11-07 修回日期:1900-01-01 出版日期:2006-11-10 发布日期:2006-11-10
  • 通讯作者: 金钦汉

Determination of Wear Metals in Aviation Lubricating Oil by Using a Simultaneous MPT Spectrometer with an Automatic Reflux Extraction System

WANG Shu-Hua, FENG Guo-Dong, ZOU Xiang-Yu, JIANG Jie, HUAN Yan-Fu, DOU Wen-Chao, JIN Qin-Han   

  1. Institute of Miniature Analytical Instrumentation, College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral
    Analytical Instruments, Jilin University, Changchun 130021, China
  • Received:2005-11-07 Revised:1900-01-01 Online:2006-11-10 Published:2006-11-10
  • Contact: JIN Qin-Han

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被引次数

8

摘要： 将萃取与回流相结合, 建立了一种处理航空润滑油中磨损金属的新方法, 并用MPT全谱仪对磨损金属含量进行了同时检测. 该方法基本上实现了样品处理的全自动化,克服了常用方法的部分缺点, 对Zn, Cd, Cu, Fe和Pb的检出限(3σ)分别为0.084, 0.043, 0.022, 0.052和0.064 μg/g; 相对标准偏差均小于5%(n=5); 回收率为94.5%~107.4%. 对3个润滑油样品的检测结果令人满意.

关键词: MPT全谱仪, 航空润滑油, 磨损金属, 回流萃取

Abstract: A novel, simple and economic sample pretreatment system based on reflux extraction was developed for the determination of wear metals in the used aviation lubricating oil by using a simultaneous microwave plasma torch atom
ic emission spectrometer(MPT-AES). The operating parameters for both sample pretreatment and analysis were studied and optimized. The detection limits are 0.084, 0.043, 0.022, 0.052, 0.064 μg/g for Zn, Cd, Cu, Fe and Pb, respectively. The relative standard deviations are less than 5%(n=5), and the recovery ratios of these elements are in the range of 94.5%—107.4%. The new system was successfully applied to the analysis of the lubricating oil samples.

Key words: Simultaneous MPT-AES, Aviation lubricating oil, Wear metal, Reflux extraction

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