Results 11 to 20 of about 101,373 (157)

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

Atmospheric Measurement Techniques, 2015
A fully automated system for the determination of δ13C and δ18O in atmospheric CO has been developed. CO is extracted from an air sample and converted into carbon dioxide (CO2) using the Schütze reagent.
S. L. Pathirana, C. van der Veen, M. E. Popa, T. Röckmann   +3 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

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

, 2010
This review paper updates the previous literature in relation to the continued and developing use of stable isotope ratio analysis in samples which are relevant to forensic science.
Benson, Benson, Benson, Bernstein, Besacier, Billault, Bowen, Brenna, Buchanan, Carter, Carter, Casale, de Korompay, Desage, Ehleringer, Ehleringer, Farmer, Farmer, Fraser, Fraser, Hilary A. S. Buchanan, James G. Fraser, Kathleen A. Savage, Kelly, Kurashima, Lock, Mas, Meier-Augenstein, Meier-Augenstein, Meier-Augenstein, Niamh Nic Daeid, Nissenbaum, Palhol, Pierrini, Podlesak, Quirk, Sarah L. Cresswell, Shibuya, Taylor, van Es, Widory   +40 more
core   +1 more source

Tree xylem water isotope analysis by Isotope Ratio Mass Spectrometry and laser spectrometry: A dataset to explore tree response to drought

Data in Brief, 2020
Water isotopes from plant xylem and surrounding environment are increasingly used in eco-hydrological studies. Carrière et al. [1] analyzed a dataset of water isotopes in (i) the xylem of three different tree species, (ii) the surrounding soil and ...
Simon Damien Carrière, Nicolas K. Martin-StPaul, Coffi Belmys Cakpo, Nicolas Patris, Marina Gillon, Konstantinos Chalikakis, Claude Doussan, Albert Olioso, Milanka Babic, Arnaud Jouineau, Guillaume Simioni, Hendrik Davi   +11 more
doaj   +1 more source

Nitrogen isotopic analyses by isotope-ratio-monitoring gas chromatography / mass spectrometry [PDF]

Journal of the American Society for Mass Spectrometry, 1994
Amino acids containing natural-abundance levels of 15N were derivatized and analyzed isotopically using a technique in which individual compounds are separated by gas chromatography, combusted on-line, and the product stream sent directly to an isotope-ratio mass spectrometer. For samples of N2 gas, standard deviations of ratio measurement were better
Merritt, Dawn A., Hayes, J.M.
openaire   +3 more sources

Stable Carbon Isotope Ratio (δ13C) Measurement of Graphite Using EA-IRMS System

Medžiagotyra, 2015
δ13C values in non-irradiated natural graphite were measured. The measurements were carried out using an elemental analyzer combined with stable isotope ratio mass spectrometer (EA-IRMS). The samples were prepared with ground and non-ground graphite, the
Andrius Garbaras, Edmundas Bružas, Vidmantas Remeikis   +2 more
doaj   +1 more source

Pyrolysis-gas chromatography–isotope ratio mass spectrometry of polyethylene [PDF]

Journal of Chromatography A, 2015
Polyethylene is probably the most used plastic material in daily life and its accurate analysis is of importance. In this communication the chemical structure of polyethylenes is studied in detail using conventional analytical pyrolysis (Py-GC/MS), bulk stable isotopic analysis (IRMS) and pyrolysis compound specific stable isotopic analysis (Py-CSIA ...
González-Pérez, José Antonio, Jiménez Morillo, N. T., Rosa Arranz, José M. de la, Almendros Martín, Gonzalo, González-Vila, Francisco Javier   +4 more
openaire   +3 more sources

Measurement of calcium isotopes (δ44Ca) using a multicollector TIMS technique [PDF]

, 2002
We propose a new“multicollector technique” for the thermal ionization mass spectrometer (TIMS) measurement of calcium (Ca) isotope ratios improving average internal statistical uncertainty of the 44Ca/40Ca measurements by a factor of 2–4 and average ...
Bock, Barbara, Eisenhauer, Anton, Gussone, Nikolaus, Hansen, B. T., Heuser, Alexander, Nägeler, Thomas F.   +5 more
core   +1 more source

Method for the determination of concentration and stable carbon isotope ratios of atmospheric phenols [PDF]

Atmospheric Measurement Techniques, 2013
A method for the determination of the stable carbon isotopic composition of atmospheric nitrophenols in the gas and particulate phases is presented. It has been proposed to use the combination of concentration and isotope ratio measurements of precursor ...
M. Saccon, R. Busca, C. Facca, L. Huang, S. Irei, A. Kornilova, D. Lane, J. Rudolph   +7 more
doaj   +1 more source

Measurement and validation of uranium isotope ratio in uranium ore for isotopic fingerprinting

Radiation Protection and Environment, 2017
Accurate determination of uranium isotope ratio can act as an efficient fingerprint in the nuclear forensics to identify source and intended use of illicit trafficking of uranium material. In this context, a rapid chemical separation technique to isolate
Suchismita Mishra, Sarata Kumar Sahoo, Probal Chaudhury, K S Pradeepkumar   +3 more
doaj   +1 more source