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《synthetic lubricants》 2003-01
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Determination of Worn Copper in Lubricating Oil by ICP - AES after Incineration

Li Ping (Chongqing Yiping Lubricant Co. Sinopec, Chongqing 400039)  
Dissolution of lubricating oil after incineration with HCI the interference of coexistent elements Ca Mg Zn P Fe can be eliminated by addition of NaCl solution as matrix buffer, then the worn copper is determined by ICP - AES. The recovery percentage of sample is in the range of 97% ~ 104% , the relative standard deviation varies from 2. 19% to 6. 12% (n = 8) . The determined results are alike to those by ASTM D5185 for different type samples.
【CateGory Index】： TE626.3
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1 YANG Hong-chun (Technology and Quality Department of Panzhihua Steel and Vanadium Co.,Ltd.,Panzhihua 617000);Determination of K_2O,Na_2O,P,S,Fe,As in Ammonium Vanadate by Inductively Coupled Plasma Atomic Emission Spectrometry[J];Journal of Chongqing University of Science and Technology(Natural Sciences Edition);2010-03
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【Secondary References】
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