*  Coupling a High-Temperature Catalytic Oxidation Total Organic Carbon Analyzer to an Isotope Ratio Mass Spectrometer To Measure...
Coupling a High-Temperature Catalytic Oxidation Total Organic Carbon Analyzer to an Isotope Ratio Mass Spectrometer To Measure ... Natural-Abundance δ 13 C-Dissolved Organic Carbon in Marine and Freshwater Samples ...
  https://www.infona.pl/resource/bwmeta1.element.acs-doi-10_1021_ac702641z
*  Resources and Tools | NOAA Climate.gov
Students learn how stable carbon isotopes can be used to reconstruct ancient sedimentary environments. Students will make some ... 3 e Biosphere drives the global carbon cycle (2) Apply 3 e Biosphere drives the global carbon cycle filter ... In this activity, students use a spreadsheet to calculate the net carbon sequestration in a set of trees; they will utilize an ... This series of activities is designed to introduce students to the role of sediments and sedimentary rocks in the global carbon ...
  https://www.climate.gov/teaching/resources/search-climateliteracy/3-biological-processes-depend-energy-flow-4358/search-subjects/nature-climate-science-19
*  Inter Research » AME » v46 » n3 » p283-293
... for the nutrition of larvae of the macroinvertebrate species Chironomus plumosus has been proposed from stable carbon isotope ... or by feeding on organisms growing on MOB-derived carbon metabolites like methanol or carbon dioxide. ... We investigated if the larvae feed on methanogenic Archaea or methane-oxidising bacteria (MOB), and whether the carbon transfer ... ABSTRACT: In freshwater food webs, a substantial contribution of methane-derived carbon ...
  http://www.int-res.com/abstracts/ame/v46/n3/p283-293/
*  Deep-Spectrum Gaschromatography and Carbon Isotopes Analysis While Drilling Enhance Value of Real-Time Formation Evaluation,...
Mud Gas Detection, Fluid typing, uncertainty reduction, Carbon Isotopes, Chromatography. Downloads. 6 in the last 30 days. 88 ... Deep-Spectrum Gaschromatography and Carbon Isotopes Analysis While Drilling Enhance Value of Real-Time Formation Evaluation, ... This is coupled with the analysis of the carbon isotopic fingerprint of light components at the wellsite. ...
  https://www.onepetro.org/conference-paper/IPTC-18864-MS?sort=&start=0&q=18864&from_year=&peer_reviewed=&published_between=&fromSearchResults=true&to_year=&rows=10
*  CO2-dependent carbon isotope fractionation in dinoflagellates relates to their inorganic carbon fluxes - ePIC
CO2-dependent carbon isotope fractionation in dinoflagellates relates to their inorganic carbon fluxes ... CO2-dependent carbon isotope fractionation in dinoflagellates relates to their inorganic carbon fluxes , Journal of ...
  http://epic.awi.de/40848/
*  Resources and Tools | NOAA Climate.gov
Students learn how stable carbon isotopes can be used to reconstruct ancient sedimentary environments. Students will make some ... In this activity, students use a spreadsheet to calculate the net carbon sequestration in a set of trees; they will utilize an ... This series of activities is designed to introduce students to the role of sediments and sedimentary rocks in the global carbon ... and use the spreadsheet to calculate carbon content of the tree using forestry research data. ...
  https://www.climate.gov/teaching/resources/search-subjects/climate-system-14/search-subjects/nature-climate-science-19
*  Precise and accurate δ13C analysis of rock samples using Flash Combustion-Cavity Ring Down Laser Spectroscopy - Journal of...
Isotopic analyses are traditionally carried out using isotope ratio mass spectrometry (IRMS), but this technique is labor- ... The ratio of 13C to 12C in marine sedimentary rocks holds important clues to the evolution of the carbon cycle through Earth ... The ratio of 13C to 12C in marine sedimentary rocks holds important clues to the evolution of the carbon cycle through Earth ... isotope ratio mass spectrometry. (. IRMS. ), but this technique is labor-intensive, expensive and requires expert know-how. ...
  http://pubs.rsc.org/en/content/articlelanding/2013/JA/C2JA30240C
*  Plus it
Malloy CR, Sherry AD, Jeffrey FMH: Analysis of the citric acid cycle of the heart using 13C isotope isomers, Am J Physiol259 : ... The top spectrum is predicted if pyruvate enters via both PDH and PC and there is active cycling between four carbon ... The predicted NMR spectra of glutamate carbon 2 (C2) are shown for two metabolic extremes. The bottom spectrum is predicted if ... Figure 2 illustrates the NMR spectra generated for carbon 2 of glutamate under vastly different metabolic circumstances. In the ...
  http://diabetes.diabetesjournals.org/content/51/suppl_3/S389
*  CiNii 論文 - Carbon isotopic composition of sterols in geochemical samples ...
Stable carbon isotope ratios of plankton carbon and sinking organic matter from the Atlantic sector of the southern Ocean. ... Controls on carbon isotope fractionation by diatom in the Peru upwelling region PANCOST R. D. ... Controls on the carbon isotope compositions of compounds in Peru surface waters PANCOST R. D. ... Influence of diet on the distribution of carbon isotopes in animals DENIRO M. J. ...
  http://ci.nii.ac.jp/naid/10008805686
*  Optical Carbon Isotope Ratiometer | SBIR.gov
Los Gatos Research is developing a simple robust methodology for the determination of carbon isotope ratios in small gas ... With such a sensitive method of accurately determining carbon isotope levels we hope to significantly advance the prospects for ... The isotope ratio is known to be a sensitive indicator of biologic activity. The new innovative advancement we propose to make ... of 1.5 microns in Phase I and demonstrate that the approach can be used to record the relative isotopic abundance of carbon 12 ...
  https://www.sbir.gov/sbirsearch/detail/218156
*  ISOTOPOS DE CARBONO (carbon isotopes): Topics by WorldWideScience.org
The 13C isotopes reflect an organic origin for the carbon. This carbon came from the diagenesis of organic matter caused by an ... Stable carbon and oxygen isotope ratios (δ13C and δ18O) of the epibenthic foraminiferan Elphidium macellum var. aculeatum were ... Using stable isotopes of nitrogen and carbon to study seabird ecology: applications in the Mediterranean seabird community , El ... Using stable isotopes of nitrogen and carbon to study seabird ecology: applications in the Mediterranean seabird community ...
  https://worldwidescience.org/topicpages/multi/ES/c/carbon+isotopes.html
*  OSA | Carbon isotopes laser separation by multiple-photon dissociation
Carbon isotopes laser separation by multiple-photon dissociation O. N. Avatcov, A. B. Bakhtadze, V. Yu. Baranov, V. S. Doljikov ... "Carbon isotopes laser separation by multiple-photon dissociation," Appl. Opt. 23, 26-29 (1984) ... Laser isotope separation of rare earth elements N. V. Karlov, B. B. Krynetskii, V. A. Mishin, and A. M. Prokhorov. Appl. Opt. ... Laser Isotope Separation Using Two-Photon Selective Excitation; Its Quantum Efficiency and Separation Factor Yung S. Liu. Appl ...
  https://www.osapublishing.org/ao/abstract.cfm?uri=ao-23-1-26
*  Carbon isotope fractionation by marine phytoplankton - ePIC
Riebesell, U. (1996): Carbon isotope fractionation by marine phytoplankton , Yigal Allon Kinneret Limnological Laboratory, ...
  http://epic.awi.de/7962/
*  Locations of marine animals revealed by carbon isotopes - NERC Open Research Archive
Carbon isotope ratios can be used to identify the location of open ocean feeding grounds for any pelagic animals for which ... As the carbon isotope composition of animal tissues varies with sea surface temperature, marine location can be identified by ... 2011 Locations of marine animals revealed by carbon isotopes. Scientific Reports, 1. 21. https://doi.org/10.1038/srep00021 ... matching time series of carbon isotopes measured in tissues to sea surface temperature records. Applying this technique to ...
  http://nora.nerc.ac.uk/id/eprint/291761/
*  Carbon isotopes in otolith amino acids identify residency of juvenile snapper (Family: Lutjanidae) in coastal nurseries |...
... to identify residency in juvenile nursery habitats with distinctive carbon isotope values. Conventional bulk... ... Stable carbon isotope analysis of amino-acid enantiomers by conventional isotope ratio mass spectrometry and combined gas- ... Carbon isotopes in otolith amino acids identify residency of juvenile snapper (Family: Lutjanidae) in coastal nurseries. ... Rodelli MR, Gearing JN, Gearing PJ, Marshall N, Sasekumar A (1984) Stable isotope ratio as a tracer of mangrove carbon in ...
  https://link.springer.com/article/10.1007%2Fs00338-011-0816-5
*  CARATE - tree-ring carbon isotopes tell stories of past climate evolution | LUOMUS
CARATE - tree-ring carbon isotopes tell stories of past climate evolution. Markku Oinonen, docent, laboratory manager & Laura ... Stability of climate signal in carbon and oxygen isotope records and ring width from Scots pine (Pinus sylvestris L.) in ... a 7500-year record of climate and tree response to climate forcing in Northern Finland on the basis of the carbon isotope ... The stable (non-radioactive) isotopic composition of carbon, δ13C, of the cellulose reflects photosynthetic production and has ...
  http://www.luomus.fi/en/carate-tree-ring-carbon-isotopes
*  Decarboxylation of glycine contributes to carbon isotope fractionation in photosynthetic organisms
... plants indicated that photorespiratory carbon isotope fractionation, opposite in sign when compared to the carbon isotope ... carbon isotope shifts of CO2 relative to the C-1-carboxyl carbon of glycine varied from +14 parts per thousand to -7 parts per ... Carbon isotope effects were investigated for the reaction catalyzed by the glycine decarboxylase complex (GDC; EC 2.1.2.10). ... Decarboxylation of glycine contributes to carbon isotope fractionation in photosynthetic organisms. Igamberdiev, A U ...
  http://umu.diva-portal.org/smash/record.jsf?pid=diva2:434113
*  Wefer, G (1985): Stable oxygen and carbon isotopes measured on Halimeda incrassata
Die Verteilung stabiler Isotope in Kalkschalen mariner Organismen. Geologisches Jahrbuch, A82, 114 pp, hdl:10013/epic.33623. ... Stable oxygen and carbon isotopes measured on Halimeda incrassata. Institut für Geowissenschaften, Christian-Albrechts- ... Wefer, Gerold (1985): Stable oxygen and carbon isotopes measured on Halimeda incrassata. Institut für Geowissenschaften, ... In supplement to: Wefer, G (1985): Die Verteilung stabiler Isotope in Kalkschalen mariner Organismen. Geologisches Jahrbuch, ...
  https://doi.pangaea.de/10.1594/PANGAEA.54090
*  Oxygen and carbon isotope ratios of hydrothermal minerals from Yellowstone drill cores
Oxygen and carbon isotope ratios were measured for hydrothermal minerals (silica, clay and calcite) from fractures and vugs in ... Oxygen and carbon isotope ratios of hydrothermal minerals from Yellowstone drill cores. Series title:. Journal of Volcanology ... Oxygen and carbon isotope ratios were measured for hydrothermal minerals (silica, clay and calcite) from fractures and vugs in ... Oxygen and carbon isotope ratios of hydrothermal minerals from Yellowstone drill cores. Journal of Volcanology and Geothermal ...
  https://pubs.er.usgs.gov/publication/70016356
*  Carbon-isotope analyses of fossil plants as a chemostratigraphic and palaeoenvironmental tool - GRÖCKE - 2007 - Lethaia - Wiley...
Carbon-isotope analyses of fossil plants as a chemostratigraphic and palaeoenvironmental tool. ... GRÖCKE, D. R. (1998), Carbon-isotope analyses of fossil plants as a chemostratigraphic and palaeoenvironmental tool. Lethaia, ...
  http://onlinelibrary.wiley.com/doi/10.1111/j.1502-3931.1998.tb00482.x/references
*  CiNii 論文 - Laser microprobe technique for stable carbon isotope of organic carbon in...
Laser microprobe technique for stable carbon isotope of organic carbon in sedimentary rocks * * Liu Yu LIU Yu ... Isotope standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide. CRAIG H. ... Sulfur and carbon isotope analyses of the 2.7 Ga Jeerinab Formation, Fortescue Group, Australia Kakegawa Takeshi , Kasahara ... Organic Carbon isotope composition of Proterozoic sedimentary rocks from India: preliminary results BANERJEE D. M. ...
  https://ci.nii.ac.jp/naid/10008805060
*  GMD - Abstract - Compiled records of carbon isotopes in atmospheric CO2 for historical simulations in CMIP6
... for models simulating carbon isotopes in the ocean or terrestrial biosphere. The data may also be useful for other carbon cycle ... Compiled records of carbon isotopes in atmospheric CO2 for historical simulations in CMIP6 Heather Graven1, Colin E. Allison2, ... Modelling of carbon isotopes 13C and 14C in land and ocean components of Earth system models provides opportunities for new ... The use of carbon isotopes in novel evaluation of the ESMs' component ocean and terrestrial biosphere models and in new ...
  https://www.geosci-model-dev.net/10/4405/2017/
*  Stable carbon isotope ratio analyses on trace methane from ice samples - Infoscience
We present an improved micro-extraction gas-chromatography continuous-flow isotope ratio mass spectrometer (CF-IRMS) method to ... Measurement of the concentration and stable isotope ratios of methane from air enclosures in ancient ice can aid in ... Stable carbon isotope ratio analyses on trace methane from ice samples Melton, Joe R. ; Whiticar, Michael J. ; Eby, Paul ... Methane ; Ice ; Method ; Irms ; Carbon isotope ; delta(CH4)-C-13 ; Atmospheric Methane ; Polar Ice ; Mass-Spectrometry ; Record ...
  https://infoscience.epfl.ch/record/170878
*  Carbon isotope fractionation between calcite, graphite and CO2 an experimental study - ePIC
Scheele, N. and Hoefs, J. (1992): Carbon isotope fractionation between calcite, graphite and CO2 an experimental study , ...
  http://epic.awi.de/2749/
*  Dienekes' Anthropology Blog: 02/2013
With the aid of strontium, carbon, and oxygen isotopes, it is now possible to develop more direct means for determining the ... These results are further enhanced by dietary evidence based on carbon and nitrogen isotopes and an increasingly high ... New strontium isotope data from the Danube Gorges in the north-central Balkans, an area characterized by a rich burial record ... Strontium isotopes document greater human mobility at the start of the Balkan Neolithic Dušan Borić and T. Douglas Price ...
  http://dienekes.blogspot.com/2013_02_01_archive.html?m=0