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Isotope analysis

Applications of stable isotope analysis to atmospheric trace gas budgets

Applications of stable isotope analysis to atmospheric trace gas budgets

... stable isotope effects are small, their measurement (necessarily mostly) by stable isotope ratio mass spectrometry has always been tedious and ...the isotope ratio mass spectrometer has been ...

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Stable isotope analysis of human hair and nail samples: the effects of storage on samples

Stable isotope analysis of human hair and nail samples: the effects of storage on samples

... Results of 13 C bulk stable isotope analysis after 6-week storage indicate that the type of packaging has no significant bearing on the results obtained (see Fig. 1a). Although the nail sample stored in ...

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An analytical system for stable isotope analysis on carbon monoxide using continuous-flow isotope-ratio mass spectrometry

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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On the interference of Kr during carbon isotope analysis of methane using continuous-flow combustion–isotope ratio mass spectrometry

On the interference of Kr during carbon isotope analysis of methane using continuous-flow combustion–isotope ratio mass spectrometry

... form molecules or adducts (Leckrone and Hayes, 1998; Ses- sions et al., 2001), which then could provide the necessary m/z 44, m/z 45 and m/z 46 signals. The other hypothesis as- sumes scattering processes lead to broader ...

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Prehistoric migration in Europe: Strontium isotope analysis of Early Neolithic skeletons

Prehistoric migration in Europe: Strontium isotope analysis of Early Neolithic skeletons

... In any case, strontium isotope analysis of LBK skele- tons suggests that many people made residential changes during the LBK of the Rhine Valley. Whether it involved foragers or farmers, the observed ...

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Automatic Isotope Analysis by Interferometry  EUR 4529

Automatic Isotope Analysis by Interferometry EUR 4529

... BERTHELOT Commission of the European Communities Joint Nuclear Research Center - Geel Establishment Belgium Central Bureau for Nuclear Measurements - CBNM Luxembourg, September 1970 - 88[r] ...

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Determining the Authenticity of Artifacts by Oxygen Isotope Analysis

Determining the Authenticity of Artifacts by Oxygen Isotope Analysis

... The mineralogic composition of the rocks and patinas both of the JI and JO were determined in the laboratories of the Geological Survey of Israel by using a transmitting ore mineral microscope a stereoscopic binocular ...

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Triple oxygen isotope analysis of nitrate using isotope exchange   cavity ringdown laser spectroscopy

Triple oxygen isotope analysis of nitrate using isotope exchange cavity ringdown laser spectroscopy

... oxygen isotope measurements ( 16 O/ 17 O/ 18 O) have become an important part of the geochemical toolkit over the past two decades, influencing fields such as atmospheric chemistry 1-4 , meteorites and planetary ...

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High resolution stable isotope analysis of a Tasmanian speleothem

High resolution stable isotope analysis of a Tasmanian speleothem

... stable isotope mass spectrometers since the previous study of Goede et al (1986) have enabled us to analyse a large number of samples with a much higher degree of measure­ ment precision, while using much smaller ...

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Hafnium isotope analysis of mixed standard solutions by multi-collector inductively coupled plasma mass spectrometry: an evaluation of isobaric interference corrections

Hafnium isotope analysis of mixed standard solutions by multi-collector inductively coupled plasma mass spectrometry: an evaluation of isobaric interference corrections

... Lu-Hf isotope system is widely used to decipher the crustal evolution and mantle differentiation of the ...Hf isotope data is to correct the isobaric interferences of Yb and Lu imposed on the 176 Hf ...

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Exceptionally high δ15N values in collagen single amino acids confirm Neandertals as high-trophic level carnivores

Exceptionally high δ15N values in collagen single amino acids confirm Neandertals as high-trophic level carnivores

... nitrogen isotope ratios in Neandertal bone collagen and has been significantly ...N isotope analyses of bone collagen amino acids have been demonstrated to add significantly more information about trophic ...

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Stable isotopes and dynamic diets : the Mesolithic-Neolithic dietary transition in terrestrial Central Europe

Stable isotopes and dynamic diets : the Mesolithic-Neolithic dietary transition in terrestrial Central Europe

... The Mesolithic-Neolithic transition in Europe marks a distinct change in human food production, typically characterised as the transition from hunting and gathering to farming. Meat from domesticated animals and ...

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Experimental investigation of potential biological nitrogen provisioning by freshwater

Experimental investigation of potential biological nitrogen provisioning by freshwater

... 15 N stable isotope analysis in investigating biological nitrogen provisioning via nitrate reduction 191. to ammonium in freshwater insects[r] ...

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Recent advances in the application of stable isotope ratio analysis in forensic chemistry

Recent advances in the application of stable isotope ratio analysis in forensic chemistry

... of using IRMS to link a pair of radios used to initiate an improvized explosive device where one radio is intact and the other partially destroyed by the blast.This clever idea is explained clearly in the paper and the ...

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Interesting Papers in Other Journals

Interesting Papers in Other Journals

... Diverse metal sources of Archaean gold deposits : evidence from in situ lead- isotope analysis of individual grains of galena and altaite in the Koss and Kirkland[r] ...

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Quaternary studies of caves and coasts : a collection of published papers and a critical review

Quaternary studies of caves and coasts : a collection of published papers and a critical review

... Significance of strontium variations speleothem, strontium, strontium isotope analysis, uranium series dating, Quaternary studies, Tasmania.. Introduction Speleothems grow by precipitati[r] ...

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Stratigraphy, sedimentation and age of the upper cretaceous Winton formation, central-western Queensland, Australia: implications for regional palaeogeography, palaeoenvironments and Gondwanan palaeontology

Stratigraphy, sedimentation and age of the upper cretaceous Winton formation, central-western Queensland, Australia: implications for regional palaeogeography, palaeoenvironments and Gondwanan palaeontology

... All instrument tuning was performed using a 5 Hz repetition rate, 44 μm beam aperture and 6 J/cm 2 energy density, as determined by energy meter at the ablation site. Under these conditions, the ablation rate for NIST ...

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1 Stable Carbon Isotope Composition of the Lipids in 2 Natural Cordyceps Sinensis from Major Habitats in

1 Stable Carbon Isotope Composition of the Lipids in 2 Natural Cordyceps Sinensis from Major Habitats in

... Keywords: stable carbon isotope analysis; lipids; fatty acids; Cordyceps sinensis ; the Qinghai-Tibetan 27 PlateauC. Introduction 30.[r] ...

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Investigating the function of prehistoric stone bowls and griddle stones in the Aleutian Islands by lipid residue analysis

Investigating the function of prehistoric stone bowls and griddle stones in the Aleutian Islands by lipid residue analysis

... 316 317 Stable isotope analysis of individual fatty acids 318 319 Based on the lipid residue analysis results, integrated with contextual archaeological information of the 320 materials,[r] ...

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The influence of oxygen isotope exchange between CO2 and H2O in natural CO2-rich spring waters : implications for geothermometry

The influence of oxygen isotope exchange between CO2 and H2O in natural CO2-rich spring waters : implications for geothermometry

... stable isotope analysis, using liquid nitrogen and sealing the ampule with a blowtorch after pumping away the other volatile ...Stable Isotope laboratory using a Micromass PRISM III mass ...

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