Esters as oligomers in secondary organic aerosols
نویسنده
چکیده
Unambiguous identification of esters as oligomers in secondary organic aerosol formed from cyclohexene and cyclohexene/α-pinene ozonolysis L. Müller, M.-C. Reinnig, J. Warnke, and T. Hoffmann Johannes Gutenberg-Universität, Institut für anorganische Chemie und analytische Chemie, Duesbergweg 10–14 55128 Mainz, Germany Received: 2 August 2007 – Accepted: 9 September 2007 – Published: 26 September 2007 Correspondence to: T. Hoffmann ([email protected])
منابع مشابه
Particle phase acidity and oligomer formation in secondary organic aerosol.
A series of controlled laboratory experiments are carried out in dual Teflon chambers to examine the presence of oligomers in secondary organic aerosols (SOA) from hydrocarbon ozonolysis as well as to explore the effect of particle phase acidity on SOA formation. In all seven hydrocarbon systems studied (i.e., alpha-pinene, cyclohexene, 1-methyl cyclopentene, cycloheptene, 1-methyl cyclohexene,...
متن کاملUnambiguous identification of esters as oligomers in secondary organic aerosol formed from cyclohexene and cyclohexene/α-pinene ozonolysis
The build-up of oligomeric compounds during secondary organic aerosol (SOA) formation is subject of atmospheric research since several years. New particle formation and especially the SOA mass yield might be influenced significantly by oligomer formation. However, the chemical nature of observed oligomers and their formation pathways are still unclear. In this paper, the structural characteriza...
متن کاملEnhanced Volatile Organic Compounds emissions and organic aerosol mass increase the oligomer content of atmospheric aerosols
Secondary organic aerosol (SOA) accounts for a dominant fraction of the submicron atmospheric particle mass, but knowledge of the formation, composition and climate effects of SOA is incomplete and limits our understanding of overall aerosol effects in the atmosphere. Organic oligomers were discovered as dominant components in SOA over a decade ago in laboratory experiments and have since been ...
متن کاملInteractive comment on “Oligomer formation during gas-phase ozonolysis of small alkenes and enol ethers: new evidence for the central role of the Criegee Intermediate as oligomer chain unit” by A. Sadezky et al
The paper describes the identification of oligomers in secondary organic aerosols derived from the ozonolysis of different small alkenes and one enol-ether. Detailed mass spectrometric analysis was used to identify structures or at least the chain carriers of the oligomers. QTOF-MS/MS analyses deliver fragmentation pathways and FT-ICRMS and MS/MS were used to measure the elemental composition o...
متن کاملKinetics feasibility study of alcohol sulfate esterification reactions in tropospheric aerosols.
Sulfate esters have recently been identified in the secondary organic aerosol (SOA) formed in the photooxidation of biogenic hydrocarbons both in laboratory and under ambient atmospheric conditions. In the present study, the kinetics feasibility of direct reactions between alcohols and sulfuric acid to form sulfate esters in aerosol particles is explored. Nuclear magnetic resonance methods were...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2007