Research Topics
| Bernd R T SimoneitSummaryAffiliation: Oregon State University Country: USA Publications
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Detail Information
Publications
Molecular indicators (biomarkers) of past lifeBernd R T Simoneit
Environmental and Petroleum Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis 97331, USA
Anat Rec 268:186-95. 2002..Known biomarkers (i.e., as elucidated for early terrestrial samples and for primitive terrestrial microbiota) as well as novel, potentially unknown compounds, should be characterized...- A review of current applications of mass spectrometry for biomarker/molecular tracer elucidationBernd R T Simoneit
Environmental and Petroleum Research Group, College of Oceanic and Atmospheric Sciences and Department of Chemistry, Oregon State University, Corvallis, Oregon 97331 5503, USA
Mass Spectrom Rev 24:719-65. 2005..The mass spectrometric methods currently utilized for such analyses are reviewed, and typical examples of applications are described with a general key to the literature... - Alkyl amides and nitriles as novel tracers for biomass burningA I Rushdi
Environmental and Petroleum Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, USA
Environ Sci Technol 37:16-21. 2003..Thus amides and nitriles are of utility as indicators for input from combustion and biomass burning in the ambient atmosphere... - Sugars--dominant water-soluble organic compounds in soils and characterization as tracers in atmospheric particulate matterBernd R T Simoneit
College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331 5503, USA
Environ Sci Technol 38:5939-49. 2004..In addition, the saccharides as well as the anhydrosaccharide derivatives from biomass burning are completely water soluble and thus contribute significantly to the total water-soluble mass of aerosols... - Combustion products of plastics as indicators for refuse burning in the atmosphereBernd R T Simoneit
Environmental and Petroleum Research Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, USA
Environ Sci Technol 39:6961-70. 2005.... - Seasonal variations in sugar contents and microbial community in a ryegrass soilPatricia M Medeiros
Environmental Sciences Graduate Program, Oregon State University, Corvallis, OR 97331, USA
Chemosphere 65:832-9. 2006.... - Chemical compositions and sources of organic matter in fine particles of soils and sands from the vicinity of Kuwait cityAhmed I Rushdi
Environmental and Petroleum Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon, USA
Environ Monit Assess 120:537-57. 2006..This input was mainly UCM, n-alkanes, hopanes, plasticizers and cholesterol, respectively... - Phenols and hydroxy-PAHs (arylphenols) as tracers for coal smoke particulate matter: source tests and ambient aerosol assessmentsBernd R T Simoneit
Environmental Sciences Program, Oregon State University, Corvallis, Oregon 97331, USA
Environ Sci Technol 41:7294-302. 2007..g., Guangzhou, South China). Thus, the mass of hydroxy-PAHs can be apportioned to coal smoke and the source strength modeled by summing the proportional contents of EC (elemental carbon), PAHs, UCM and alkanes with the hydroxy-PAHs... - Source profiles of organic compounds emitted upon combustion of green vegetation from temperate climate forestsPatricia M Medeiros
Environmental Sciences Program, College of Oceanic and Atmospheric Sciences, and Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, USA
Environ Sci Technol 42:8310-6. 2008.... - Sources of organic compounds in fine soil and sand particles during winter in the metropolitan area of Riyadh, Saudi ArabiaAhmed I Rushdi
Environmental and Petroleum Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
Arch Environ Contam Toxicol 49:457-70. 2005..g., shopping bags). Carbohydrates had high concentrations in all samples and indicate sources from decomposed cellulose fibers and/or the presence of viable microbiota such as bacteria and fungi... - Analysis of sugars in environmental samples by gas chromatography-mass spectrometryPatricia M Medeiros
Environmental Sciences Program, Oregon State University, Corvallis, OR 97331, USA
J Chromatogr A 1141:271-8. 2007..Therefore, the analytical method presented here demonstrated its usefulness for a better understanding of sources and transport of various organic compounds in different environmental compartments... - Gas chromatography coupled to mass spectrometry for analyses of organic compounds and biomarkers as tracers for geological, environmental, and forensic researchPatricia M Medeiros
Environmental and Petroleum Research Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, USA
J Sep Sci 30:1516-36. 2007..The mass spectrometric methods currently utilized for such analyses are reviewed with a general key to the literature, and typical examples of applications using GC-MS are also described... - Abiotic condensation synthesis of glyceride lipids and wax esters under simulated hydrothermal conditionsAhmed I Rushdi
Environmental and Petroleum Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
Orig Life Evol Biosph 36:93-108. 2006..The results indicate that condensation reactions and abiotic synthesis of organic lipid compounds under hydrothermal conditions occur easily, provided precursor concentrations are sufficiently high... - Photochemical alteration of 3-oxygenated triterpenoids: implications for the origin of 3,4-seco-triterpenoids in sedimentsBernd R T Simoneit
Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA
Chemosphere 74:543-50. 2009.... - Abiotic synthesis of organic compounds from carbon disulfide under hydrothermal conditionsAhmed I Rushdi
Environmental and Petroleum Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
Astrobiology 5:749-69. 2005..2%), dimethyl trisulfide (1.1%), and numerous minor compounds. It is concluded that the abiotic formation of aliphatic straight-chain and cyclic polysulfides is possible under hydrothermal conditions and warrants further studies... - Triterpenoids as major components of the insect-trapping glue of Roridula speciesBernd R T Simoneit
Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA
Z Naturforsch C 63:625-30. 2008..The difference between the two species is the additional presence of taraxeradiol in the glue of R. gorgonias. The absolute chemical structures of the reported triterpenoids still need confirmation... - Condensation reactions and formation of amides, esters, and nitriles under hydrothermal conditionsAhmed I Rushdi
Environmental and Petroleum Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, USA
Astrobiology 4:211-24. 2004..These organic nitrogen compounds are stable and survive under the elevated temperatures of hydrothermal fluids... - Lignans in resin of Araucaria angustifolia by gas chromatography/mass spectrometryShuichi Yamamoto
Environmental and Petroleum Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, USA
J Mass Spectrom 39:1337-47. 2004..The mass spectra of the various lignan trimethylsilyl derivatives are discussed with the interpretations of the fragmentation patterns... - Natural product terpenoids in Eocene and Miocene conifer fossilsAngelika Otto
Environmental and Petroleum Geochemistry Group, College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, USA
Science 297:1543-5. 2002..The results also show that fossil conifers can contain polar terpenoids, which are valuable markers for (paleo)chemosystematics and phylogeny... - Levoglucosan and other cellulose markers in pyrolysates of Miocene lignites: geochemical and environmental implicationsDaniele Fabbri
Laboratory of Environmental Sciences R Sartori, CIRSA, University of Bologna, via S Alberto 163, 48100 Ravenna, Italy
Environ Sci Technol 42:2957-63. 2008..This indicates that mannosan and galactosan are better specific tracers for combustion of contemporary biomass in those regions were the utilization of brown coals containing fossilized cellulose is important... - Measurement of emissions from air pollution sources. 5. C1-C32 organic compounds from gasoline-powered motor vehiclesJames J Schauer
Environmental Engineering Science, California Institute of Technology, Pasadena 91125, USA
Environ Sci Technol 36:1169-80. 2002..In contrast, the distribution of the polycyclic aromatic hydrocarbons and their methylated homologues in the gasoline is significantly different from the distribution of the PAH in the tailpipe emissions from both types of vehicles... - Chemical characterzation of fine particle emissions from the fireplace combustion of woods grown in the Southern United StatesPhilip M Fine
Environmental Engineering Science Department, California Institute of Technology, Pasadena 91125, USA
Environ Sci Technol 36:1442-51. 2002.... - Source reconciliation of atmospheric gas-phase and particle-phase pollutants during a severe photochemical smog episodeJames J Schauer
California Institute of Technology, Pasadena 91125, USA
Environ Sci Technol 36:3806-14. 2002.... - Trimethylsilyl derivatives of organic compounds in source samples and in atmospheric fine particulate matterChristopher G Nolte
Environmental Engineering Science Department, California Institute of Technology, Pasadena 91125, USA
Environ Sci Technol 36:4273-81. 2002..e., waxes) than the high molecular weight alkanes, which have been the best previously available tracers for that source... - Three series of high molecular weight alkanoates found in Amazonian plantsAlberto S Pereira
LADETEC, Instituto de Qui;mica, Universidade Federal do Rio de Janeiro, , Centro de Tecnologia, Bloco A, Sala 607, 21949-900, Brazil
Phytochemistry 61:711-9. 2002..The interpretations are supported by high resolution mass spectrometry and GC retention indices of authentic standards... - Measurement of emissions from air pollution sources. 4. C1-C27 organic compounds from cooking with seed oilsJames J Schauer
Environmental Chemistry and Technology Program, University of Wisconsin Madison, 53706, USA
Environ Sci Technol 36:567-75. 2002..Estimates also indicate that seed oil cooking may make up a significant fraction of the emissions of lighter n-alkanoic acids such as nonanoic acid... - Biomolecules preserved in ca. 168 million year old fossil conifer woodLeszek Marynowski
Faculty of Earth Sciences, University of Silesia, Bedzińska Street 60, 41 200 Sosnowiec, Poland
Naturwissenschaften 94:228-36. 2007..Therefore, the natural product terpenoids are of great advantage in systematics of fossil plant remains older than Paleogene and lacking suitable anatomical preservation... - Occurrence and distribution of novel botryococcene hydrocarbons in freshwater wetlands of the Florida EvergladesMin Gao
Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, USA
Chemosphere 70:224-36. 2007..Their potential biogenetic sources from green algae and cyanobacteria were examined, but neither contained botryococcenes. Thus, the source implication of botryococcenes in this ecosystem needs further study...