Isotope Analysis
An analytical system for stable isotope analysis on carbon monoxide using continuous-flow isotope-ratio mass spectrometry
... CO isotope analysis was carried out with of- fline extraction systems, which require large amounts of air (Brenninkmeijer, 1993; Stevens and Krout, 1972), but in re- cent years, continuous-flow techniques ...
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Estimation of nutrient contributions from the ocean across a river basin using stable isotope analysis
... both δ 13 C and δ 15 N. The contribution of MDN to SOM in surface soils was evaluated by applying a two source mixing model based on stable isotope analysis (SIA) of carbon (δ 13 C) and nitrogen (δ 15 N) ...
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Carbon isotope analysis in apple nectar beverages
... Most isotope techniques requires the use of the database of isotope values of raw materials (fruit juice and sugar) as a reference for comparison to estimate the composition of the products to be ...for ...
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On the interference of <sup>86</sup>Kr<sup>2+</sup> during carbon isotope analysis of atmospheric methane using continuous flow combustion – isotope ratio mass spectrometry
... less pronounced. Based on these results we speculate that the well focused m/z 43 ion beam is better focussed at dual inlet conditions, but in continuous flow mode it is broadened by collisions with He ions in the source ...
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Traceability of Bovine Meat and Bone Meal in Poultry by Stable Isotope Analysis
... respectively. They were weighed inside metal capsules and placed into a Multi-element analyzer (EA 1108 CHN Fisons Instruments, Rodano, Italy) by automatic sampler. The samples were quantitatively burned in the ...
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Aplicação da análise isotópica de composto específico (Técnica CSIA) em perícias ambientais para distinguir diferentes fontes de contaminação
... COMPOUND-SPECIFIC ISOTOPE ANALYSIS (CSIA) IN ENVIRONMENTAL SURVEYS TO DISTINGUISH DIFFERENT SOURCES OF ...Compound-Specific Isotope Analysis (CSIA) is an analytical method that measures the ...
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HESS Opinions "A perspective on isotope versus non-isotope approaches to determine the contribution of transpiration to total evaporation"
... water isotope analysis an interesting diagnostic for a quantitative separa- tion between the evaporation flux from bare soils and open water on the one hand, and plant transpiration on the other ...
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A new CF-IRMS system for quantifying stable isotopes of carbon monoxide from ice cores and small air samples
... A schematic diagram of the online extraction and precon- centration method for carbon and oxygen isotope analysis of ice core CO is shown in Fig. 1. A wet extraction system for ice cores is combined with a ...
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Connectivity between tropical coastal habitats:using stable isotopes in juvenile penaeid shrimps and potential food sources
... stable isotope analysis, the present study intended to investigate the biological connectivity between the mangrove and adjacent coastal habitats (sand and mud flats and seagrass meadows) on two mangrove ...
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Development of a halotolerant community in the St. Lucia Estuary (South Africa) during a hypersaline phase.
... Methodology/Principal Findings: This study documents the changes that occurred in the biotic communities at False Bay from May 2010 to June 2011, in order to better understand ecosystem functioning in hypersaline ...
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Do low-mercury terrestrial resources subsidize low-mercury growth of stream fish? Differences between species along a productivity gradient.
... For isotope analysis, a small ...(Delta+XL isotope ratio mass ...the analysis of standards (mesquite, USGS25, and in- house fish tissue standard ...the isotope ratios using standard ...
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ISOTOPE DETERMINATION OF SULFUR BY MASS SPECTROMETRY IN SOIL SAMPLES
... The conversion of organic S to sulphate by various methods was described elsewhere (Krouse et al., 1996; Menegário et al., 1998; Rossete et al., 2008a), but the complexity of the organic matrix of the soil hampers the ...
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Multivariate analysis of stable isotope data in the traceability process for birds=Análise multivariada em dados de isótopos estáveis no processo de rastreabilidade em aves
... ABSTRACT. Isotope analysis has proved to be an extremely important tool in the traceability process; however, statistical analyses of the results show discrepancies, as the data depend on and originate from ...
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Exploration and Documentation of the Peştera cu Oase
... Stable isotope analysis of human and animal remains from the Late Upper Palaeolithic site of Balma Guilany à , southeastern Pre-Pyrenees, Spain.. Les oubiettes de Gargas.[r] ...
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A kinetic analysis of leaf uptake of COS and its relation to transpiration, photosynthesis and carbon isotope fractionation
... Suntharalingam, P., Kettle, A.J., Montzka, S. M., and Jacob, D. J.: Global 3-D model analysis of the seasonal cycle of atmospheric carbonyl sulfide: Implications for terrestrial vegetation uptake, Geophys. Res. ...
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The influence of coastal access on isotope variation in Icelandic arctic foxes.
... stable isotope data on a small generalist predator, the arctic fox, to infer dietary strategies between adult and juvenile individuals with and without coastal access on ...broader isotope niche breadth ...
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δ13C chemostratigraphy of the Middle and Upper Ordovician succession in the Tartu-453 drillcore, southern Estonia, and the significance of the HICE
... Based on the δ 13 C isotope data, a continuous Ordovician carbon isotope record was created, ranging from the Floian to the end of the Hirnantian of southern Estonia. Five positive δ 13 C excursions were ...
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Isotope Technologies and Applications - New Horizons
... Herein, we describe the influence of irradiation process (two different doses) in antioxidant properties of fruits and skins stored at 4 °C for 2 months.. Longal sam pIes.[r] ...
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Carbon isotope fractionation for cotton genotype selection
... Different breeding methods and selection approaches have been used for this purpose, involving progeny rows, individual selection, crossing and backcrossing, physiology, and molecular marker approaches (SNP, SSR, AFLP, ...
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Carbon isotope stratigraphy, magnetostratigraphy, and
... carbon isotope stratigraphy. In this paper, we present the stable carbon isotope chemostratigraphy derived from bivalve shells and the magnetostratigraphy at Bentiaba, Namibe Basin, ...
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