Results 21 to 30 of about 116,875 (192)

Cooking fish and drinking milk? Patterns in pottery use in the southeastern Baltic, 3300–2400 cal BC [PDF]

, 2015
yesA study of pottery vessel contents and use was undertaken in order to obtain information on food processed in Subneolithic and Neolithic vessels from Nida and Šventoji (3300–2400 cal BC).
Ackman, Alexandre Luquin, Allentoft, Antanaitis-Jacobs, Anu Thompson, Artemenko, Auttila, Carl Heron, Colonese, Copley, Corr, Correa-Ascencio, Craig, Craig, Craig, Craig, Cramp, Cramp, Cramp, Damušytė, Dobrotin, Dudd, Dufour, Eriksson, Fernandes, Gytis Piličiauskas, Haak, Hansel, Hansel, Hart, Heron, Heron, Hollack, Isaksson, Jussila, Katzenberg, Lasota-Moskalewska, Longin, Loze, Lundström, Makowiecki, Oliver E. Craig, Outram, Papmehl-Dufay, Piličiauskas, Piličiauskas, Regert, Rimantienė, Rimantienė, Rontani, Rushdi, Saul, Shahidi, Solazzo, Svensson, Taché, Valerie J. Steele, Zemlys, Zurek, Žydelis   +59 more
core   +1 more source

Isotope Effects as New Proxies for Organic Pollutant Transformation

CHIMIA, 2014
Assessing the pathways and rates of organic pollutant transformation in the environment is a major challenge due to co-occurring transport and degradation processes. Measuring changes of stable isotope ratios (e.g. 13C/12C, 2H/1H, 15N/14N) in individual
Thomas B. Hofstetter, Jakov Bolotin, Sarah G. Pati, Marita Skarpeli-Liati, Stephanie Spahr, Reto S. Wijker   +5 more
doaj   +1 more source

Analytical modelling of stable isotope fractionation of volatile organic compounds in the unsaturated zone [PDF]

, 2011
Analytical models were developed that simulate stable isotope ratios of volatile organic compounds (VOCs) near a point source contamination in the unsaturated zone. The models describe diffusive transport of VOCs, biodegradation and source ageing.
Abriola, Baehr, Bouchard, Bouchard, Bouchard, Bouchard, Broholm, Cerling, Christophersen, Clark, Conant, Craig, Daniel Bouchard, Daniel Hunkeler, Davis, Davis, Elsner, Fabien Cornaton, Falta, Franzmann, Gaganis, Grathwohl, Harrington, Hers, Hoff, Hohener, Hohener, Hunkeler, Hunkeler, Jin, Jost, Jury, Karapanagioti, Kiss, Kuder, Lahvis, Meckenstock, Millington, Moldrup, Ostendorf, Parker, Pasteris, Patrick Höhener, Schmidt, Schwarzenbach, Schüth, Sherwood Lollar, Slater, Smith, Van de Steene, Wang, Werner, Werner   +52 more
core   +3 more sources

Development of an advanced on-line position-specific stable carbon isotope system and application to methyl tert-butyl ether [PDF]

, 2009
We present an advanced system for on-line position-specific carbon isotope analysis. The main limitation of on-line intramolecular isotope ratio measurements has been that optimal pyrolytic fragments are obtained mostly at temperatures where the analyte ...
Abelson, Barrie, Barth, Benson, Coplen, Corso, Corso, Corso, Daly, Dempster, Dias, Elsner, Elsner, Fischer, Gray, Hall, Hall, Harrington, Hayes, Hirschorn, Huang, Hunkeler, Jasper, Jeffrey, Kolhatkar, Kuder, Mancini, Mariotti, Matthews, Meckenstock, Meier-Augenstein, Meier-Augenstein, Merritt, Miller, Monson, Morrison, O'Sullivan, Poulson, Richnow, Rosell, Sacks, Sano, Schmidt, Schmidt, Schüth, Slater, Slater, Slater, Smallwood, Somsamak, Somsamak, Vogler, Wang, Wolyniak, Wolyniak, Yamada, Zwank   +56 more
core   +1 more source

Detection of exogenous sugars in pineapple juice using compound-specific stable hydrogen isotope analysis

npj Science of Food, 2021
An improved procedure for determining 2H/1H isotope ratios, using gas chromatography-isotope ratio mass spectrometry, has been used to detect the addition of exogenous C4-plant-derived sugars to pineapple juice.
Simon D. Kelly, Aiman Abrahim, Peter Rinke, Andrew Cannavan   +3 more
doaj   +1 more source

Existing and emerging technologies for measuring stable isotope labelled retinol in biological samples: isotope dilution analysis of body retinol stores [PDF]

, 2014
This paper discusses some of the recent improvements in instrumentation used for stable isotope tracer measurements in the context of measuring retinol stores, in vivo.
Preston, Tom
core   +1 more source

Variability of trophic magnification factors as an effect of estimated trophic position: Application of compound-specific nitrogen isotope analysis of amino acids

Environment International, 2020
The trophic magnification of persistent organic pollutants (POPs), which is the relationship between POP concentration and the trophic position (TPs) of an organism, is considered an important factor for prioritizing chemicals of concern in the ...
Eun-Ji Won, Bohyung Choi, Chang Hwa Lee, Seongjin Hong, Jong-Hyeon Lee, Kyung-Hoon Shin   +5 more
doaj   +1 more source

Mass spectrometric measurement of hydrogen isotope fractionation for the reactions of chloromethane with OH and Cl [PDF]

Atmospheric Chemistry and Physics, 2018
Chloromethane (CH3Cl) is an important provider of chlorine to the stratosphere but detailed knowledge of its budget is missing. Stable isotope analysis is a potentially powerful tool to constrain CH3Cl flux estimates.
F. Keppler, F. Keppler, F. Keppler, E. Bahlmann, E. Bahlmann, M. Greule, M. Greule, H. F. Schöler, J. Wittmer, J. Wittmer, C. Zetzsch, C. Zetzsch   +11 more
doaj   +1 more source

Identification of microbial exopolymer producers in sandy and muddy intertidal sediments by compound-specific isotope analysis

Peer Community Journal, 2023
Extracellular polymeric substances (EPS) refer to a wide variety of high molecular weight molecules secreted outside the cell membrane by biofilm microorganisms.
Hubas, Cédric, Gaubert-Boussarie, Julie, D’Hondt, An-Sofie, Jesus, Bruno, Lamy, Dominique, Meleder, Vona, Prins, Antoine, Rosa, Philippe, Stock, Willem, Sabbe, Koen   +9 more
doaj   +1 more source

Stable Isotope Analysis of Residual Pesticides via High Performance Liquid Chromatography and Elemental Analyzer–Isotope Ratio Mass Spectrometry

Molecules, 2022
To broaden the range of measurable pesticides for stable isotope analysis (SIA), we tested whether SIA of the anthranilic diamides cyantraniliprole (CYN) and chlorantraniliprole (CHL) can be achieved under elemental analyzer/isotope ratio mass ...
Hee Young Yun, Eun-Ji Won, Jisoo Choi, Yusang Cho, Da-Jung Lim, In-Seon Kim, Kyung-Hoon Shin   +6 more
doaj   +1 more source