Analysis of Combustion Chamber Deposits by ESI-TOF-MS and MALDI-TOF-MS

Conference · Thu Jun 14 00:00:00 EDT 2001

OSTI ID:15004862

Reynolds, J G; Shields, S J; Roos, J W

Combustion chamber deposits (CCDs) in internal combustion engines have been studied by various techniques to understand the relationship of performance degradation with deposit quantity and structure. XPS, XAS, NMR, and elemental analysis have offered insight into the bulk structure of C, H, N, O and metal components [1]. MS has offered some information about compound structure, but results are limited due to the insolubility and complexity of the materials. Recent advances in MS have opened new possibilities for analysis of CCDs. Here we report initial findings on the carbon structure of these deposits determined by ESI-TOF-MS and MADLI-TOF-MS.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 15004862
• Report Number(s): UCRL-JC-144230; TRN: US200321%%368
• Resource Relation: Conference: American Society of Mass Spectrometry, Chicago, IL (US), 05/28/2001--06/01/2001; Other Information: PBD: 14 Jun 2001
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
36 MATERIALS SCIENCE
CARBON
COMBUSTION CHAMBERS
INTERNAL COMBUSTION ENGINES
MASS SPECTROSCOPY
PERFORMANCE
X-RAY PHOTOELECTRON SPECTROSCOPY