Results 101 to 110 of about 154,472 (297)

Isotope Mass Spectrometry in Meat Identification

Техника и технология пищевых производств
Meat and meat products are consumed by a large proportion of the population. As a result, food scientists keep inventing new methods for meat identification, e.g., isotope mass spectrometry.
Lisitsyn Andrey, Chernukha Irina, Oganesyants Lev, Panasyuk Alexander, Sviridov Dmitriy, Ganin Mikhail   +5 more
doaj   +1 more source

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

Sampling systems for isotope‐ratio mass spectrometry of atmospheric ammonia

Rapid Communications in Mass Spectrometry, 2005
Abstract Passive and active ammonia (NH 3 ) sampling devices have been tested for their nitrogen (N) capture potential and δ 15 N fractionation effects. Several sampling techniques produced significantly different
Skinner, Richard, Ineson, Phil., Jones, Helen, Sleep, Darren, Theobald, Mark   +4 more
openaire   +4 more sources

Mass Spectrometric Investigation of the Influence of Water Vapour and Oxygen on Gas‐Phase Reactions of Aluminium Acetylacetonate

Advanced Materials Interfaces, EarlyView.
The gas‐phase decomposition of Al(acac)3 is investigated under inert, oxygen, and water‐containing conditions. Water is found to promote selective ligand removal and suppress hydrocarbon formation, while oxygen induces faster, less selective decomposition pathways.
Ilyas Adaköy, Sebastian Grimm, Patrick Hemberger, Nina Gaiser, Thomas Bierkandt, Charlotte Rudolph, Christoph Horn, Niklas Tomasik, Burak Atakan   +8 more
wiley   +1 more source

New Directions in Focused Ion Beam Induced Deposition for the Nanoprinting of Functional 3D Heterostructures

Advanced Materials Technologies, EarlyView.
Here, it is shown that focused ion beam induced deposition (FIBID) using helium and neon ions enables advanced high‐resolution 3D nanoprinting achieving precise multimaterial architectures and engineered internal voids. Thus, FIBID with finely focused noble gas ion species is presented as a unique platform for designing functional nanomaterials for ...
Frances Isabel Allen
wiley   +1 more source

Nanocrystal Quality–Controlled Scintillation in Porous YAG:Ce Aerogels

Advanced Optical Materials, EarlyView.
High‐temperature thermal treatment of YAG:Ce nanoscintillator aerogels increases light yield under ionizing radiation by up to eightfold without affecting timing performance. Additionally, low‐temperature atmospheric treatments reversibly modify the cerium oxidation state, revealing strong defect sensitivity and offering new strategies to optimize ...
Pavlo Mai, Yannis Cheref, Raphael Marie‐Luce, Frédéric Lerouge, Julien Houel, Gilles Ledoux, Alice Perret, Francesca Cova, Mauro Fasoli, Benoit Sabot, Frédéric Chaput, Christophe Dujardin   +11 more
wiley   +1 more source

Liquid chromatography coupled to mass spectrometry for steroid hormones analysis: issues and solutions in sample preparation and method development

Journal of Chromatography Open
Current work presents main aspects of the application of liquid chromatography in combination with low- and high-resolution mass spectrometry to an analysis of steroid hormones. Advantages and challenges of both targeted and untargeted analysis are shown
A. Temerdashev, S. Girel, S.N. Atapattu, Y.-Q. Feng, E. Gashimova, T. Malitskaya, I. Podolskiy, Q.-F. Zhu   +7 more
doaj   +1 more source

Locally Grown, Natural Ingredients? The Isotope Ratio Can Reveal a Lot!

CHIMIA, 2016
This communication gives an overview of selected isotope analyses applied to food authenticity assessment. Different isotope ratio detection technologies such as isotope ratio mass spectrometry (IRMS) and cavity ring down spectroscopy (CRDS) are
Joël S. Rossier, Valérie Maury, Elmar Pfammatter   +2 more
doaj   +1 more source

Analyzing peptides and proteins by mass spectrometry: principles and applications in proteomics [PDF]

, 2012
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166The study of proteins has been a key element in biomedicine and biotechnology because of their important role in cell functions or enzymatic activity. Cells are the basic unit of living
Estanyol i Ullate, Josep Maria, Fernández Vidal, Irene, Fidalgo, Maria José, Olmedo Casas, Eva   +3 more
core   +1 more source

A New Method of Measuring 81Kr and 85Kr Abundances in Environmental Samples

, 2003
We demonstrate a new method for determining the 81Kr/Kr ratio in environmental samples based upon two measurements: the 85Kr/81Kr ratio measured by Atom Trap Trace Analysis (ATTA) and the 85Kr/Kr ratio measured by Low-Level Counting (LLC).
B. E. Lehmann, Forster M., K. Bailey, L. Young, Loosli H. H., N. C. Sturchio, P. Mueller, R. Lorenzo, R. Purtschert, T. P. O'Connor, X. Du, Young L., Z.‐T. Lu   +12 more
core   +1 more source