Results 201 to 210 of about 35,305 (286)

How Well Do We Know VPDB-Part 2: Interlaboratory Assessment of Existing δ¹³C_VPDB Reference Materials. [PDF]

Rapid Commun Mass Spectrom
Moossen H, Steur PM, Camin F, Krajnc B, Enke A, Geilmann H, Paul D, Lange M, von Rein I, Meijer HAJ.   +9 more
europepmc   +1 more source

Radiocarbon Dating of Pottery Food Crusts: Reservoir Effect or not? The case of the Swifterbant pottery from Doel “Deurganckdok" [PDF]

, 2009
Boudin, Mathieu, Crombé, Philippe, Van Strydonck, Mark   +2 more
core  

Nitrogen Stable Isotopes Track Ammonia Emission Sources and Ammonium Aerosol Formation Processes in the Marine Boundary Layer

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract We measured the nitrogen isotopic composition of surface seawater and aerosol ammonium in the Weddell Sea region of the Southern Ocean to investigate the natural atmospheric cycle of marine ammonia emissions and aerosol ammonium formation in a region not overwhelmed by anthropogenic emissions.
K. E. Altieri, S. Smith, S. E. Fawcett, K. A. M. Spence, M. N. Mathuri, J. Granger   +5 more
wiley   +1 more source

Sensor Monitoring of Conveyor Working Operation with Oscillating Trough Movement. [PDF]

Sensors (Basel)
Hrabovský L, Pravda Š, Fries M.
europepmc   +1 more source

ENSO‐Mediated Linkage Between the East Asian Summer Monsoon and Cordilleran Ice Sheet Discharge During MIS 3

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Understanding the mechanisms linking low‐latitude monsoon variability and high‐latitude ice‐sheet discharge is critical for elucidating past atmospheric teleconnections, yet direct evidence for such linkages during the last glacial period remains limited. Here we present a high‐resolution terrigenous input record from the South China Sea (SCS)
Haosen Wang, Yi Zhong, Yuanjie Li, Hai Li, Xing Xu, Xiaoxu Shi, Qingsong Liu   +6 more
wiley   +1 more source

Compound-Specific and Intramolecular δ¹⁵N Analysis of a Poly-Nitrogenous Amino Acid: Histidine. [PDF]

Anal Chem
Lee CWM, Altabet MA, Baca J, Barrera J, Zhang L.   +4 more
europepmc   +1 more source

Catalytic Autoxidation for Depolymerization of Multilayer Plastic Films

ChemSusChem, Volume 19, Issue 7, 14 April 2026.
Catalytic autoxidation using a Co/Mn/Br catalyst system depolymerizes diverse polymers in multilayer plastic films, generating oxygenated small molecules such as dicarboxylic acids. The method tolerates additives and disrupters and converts up to 48 mol% polymer carbon into soluble products, enabling chemical recycling of complex plastic waste ...
Ciaran W. Lahive, Amy A. Cuthbertson, Anna N. Walsh, Sydney E. Reiber, Hannah M. Alt, Brenna A. Black, Christopher Botello, Jason S. DesVeaux, Spencer Lask, Clarissa Lincoln, William E. Michener, Joel Miscall, Kelsey J. Ramirez, Lisa M. Stanley, Sean P. Woodworth, Shannon S. Stahl, Gregg T. Beckham   +16 more
wiley   +1 more source

Gas chromatography for analysis and estimation of ¹³C at natural abundance level in fatty acids produced from <i>Aurantiochytrium limacinum</i>, a sustainable source of polyunsaturated fatty acid. [PDF]

Front Bioeng Biotechnol
Dirir AM, Chokshi K, Ali AH, Alhanawi M, Rommala M, Hachem M.   +5 more
europepmc   +1 more source

δ(¹⁸O/¹⁶O) Determinations in Water Using Inductively Coupled Plasma-Tandem Mass Spectrometry. [PDF]

Anal Chem
Lancaster ST, Irrgeher J, Dallmayr R, Conrad E, Hörhold M, Bohleber P, Behrens M, Camin F, Žagar K, Vreča P, Prohaska T.   +10 more
europepmc   +1 more source

High-Precision Oxygen-Isotope Analysis of Iron (Oxyhydr)oxides Using High-Temperature Conversion Isotope Ratio Mass Spectrometry. [PDF]

Anal Chem
Galili N, Somlyay A, Aquila G, Wijker R, Gautschi P, Wacker L, Hemingway JD.   +6 more
europepmc   +1 more source