Headspace analysis of engine oil by gas chromatography/mass spectrometry.

摘要: This study establishes the rationale necessary for determining time to change engine oil. is based on identifying gaseous components in new and used automobile lubricants. Key compounds, so-called “signature”, are separated identified qualitatively by coupled gas chromatography/mass spectrometry. Volatile antioxidants at zero miles fuel contaminants low mileage observed headspace of Several oxidative degradation have been positively oil, which include following:  acetaldehyde, acetone, butanal, 2-propanol, acetic acid, 2-hexanol, benzoic benzaldehyde, 1-pentanol. strongly suggests that status lubricating oil can be determined analysis phase above Most importantly, it opens possibility performing conditional maintenance combustion information obtained from sensors.