Results 71 to 80 of about 101,472 (247)

Synergistic Fluorine and Cyanide Co‐Modification to Reinforce Photoinduced Excitons Formation and Transfer for Efficient CO2 Photoreduction

Advanced Functional Materials, EarlyView.
An advanced F‐doped and ─CN group co‐modified FCCN is developed. Due to the synergistic effects of co‐modification in promoting photogenerated exciton generation, enhancing charge kinetics, expanding active interfacial areas, and optimizing CO2 interfacial reactions, the FCCN photocatalyst demonstrates excellent catalytic performance and high ...
Sheng‐Qi Guo, Qingqing Dong, Xiaodong Sun, Ziqi Zhang, Linda Wang, Lei Bao, Bozhan Li, Hui Li, Yanrui Li, Tianyi Ma   +9 more
wiley   +1 more source

Origin and depositional environments of source rocks and crude oils from Niger Delta Basin: Carbon isotopic evidence

China Geology, 2020
: Thirty-nine crude oils and twenty-one rock samples from Niger Delta Basin, Nigeria have been characterized based on their isotope compositions by elemental analysis-isotope ratio mass spectrometry and gas chromatography-isotope ratio mass spectrometry.
Abiodun B Ogbesejana, Oluwasesan M Bello, Tijjani Ali   +2 more
doaj   +1 more source

Forensic examination of Australian papers using isotope ratio mass spectrometry [PDF]

, 2016
University of Technology Sydney. Faculty of Science.Isotope Ratio Mass Spectrometry (IRMS) has been shown to be a useful tool in the comparison of materials that are chemically identical or have been naturally produced.
Jones, Kylie Marie
core  

Multiplierz: An Extensible API Based Desktop Environment for Proteomics Data Analysis [PDF]

, 2009
BACKGROUND. Efficient analysis of results from mass spectrometry-based proteomics experiments requires access to disparate data types, including native mass spectrometry files, output from algorithms that assign peptide sequence to MS/MS spectra, and ...
Askenazi, Manor, Blank, Nathaniel C., Cashorali, Tanya, Ficarro, Scott B., Marto, Jarrod A., Parikh, Jignesh R., Webber, James T., Zhang, Yi   +7 more
core   +4 more sources

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

Advanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra, Paul Konrad, Andreas Sperlich, Timur Biktagirov, Wolf Gero Schmidt, Lesley Spencer, Igor Aharonovich, Sven Höfling, Vladimir Dyakonov   +8 more
wiley   +1 more source

Continuous-flow IRMS technique for determining the 17O excess of CO2 using complete oxygen isotope exchange with cerium oxide [PDF]

, 2014
This paper presents an analytical system for analysis of all single substituted isotopologues (12C16O17O, 12C16O18O, 13C16O16O) in nanomolar quantities of CO2 extracted from stratospheric air samples.
Kaiser, J., Kliphuis, M., Mrozek, D. J., Röckmann, T., Van Der Veen, C., Wiegel, A. A.   +5 more
core   +2 more sources

SI‐bioATRP in Mesoporous Silica for Size‐Exclusion Driven Local Polymer Placement

Advanced Functional Materials, EarlyView.
An enzyme‐catalyzed surface‐initiated atom transfer radical polymerization (SI‐bioATRP) of an anionic monomer within mesoporous silica particles, using hemoglobin as a catalyst, allows for controlling the location of the formed polymer via size‐exclusion effects between the nanopores and the biomacromolecules, thereby opening routes to functional ...
Oleksandr Wondra, Eleonora Ornati, Robert Lehn, Joanna J. Mikolei, Hergen Breitzke, Raheleh Pardehkhorram, Gerd Buntkowsky, Nico Bruns, Annette Andrieu‐Brunsen   +8 more
wiley   +1 more source

Provenancing Flower Bulbs by Analytical Fingerprinting: Convallaria Majalis

Agriculture, 2015
The origin of agricultural products is gaining in appreciation while often hard to determine for various reasons. Geographical origin may be resolved using a combination of chemical and physical analytical technologies. In the present case of Lily of the
Saskia M. van Ruth, Ries de Visser
doaj   +1 more source

Boron isotope ratio determination in carbonates /via/ LA-MC-ICP-MS using soda-lime glass standards as reference material [PDF]

, 2010
A new in situ method using LA-MC-ICP-MS (193 nm excimer laser) for the determination of stable boron isotope ratios (δ11B) in carbonates was developed.
Aggarwal, Aggarwal, Agnes Heinemann, Anton Eisenhauer, Dickson, Duchateau, Eggins, Fietzke, Fietzke, Florian Böhm, Foster, Foster, Gaillardet, Hemming, Hemming, Hemming, Heumann, Hönisch, Isabelle Taubner, Jan Fietzke, Jonathan Erez, Kakihana, Kasemann, Kasemann, Klochko, Klochko, le Roux, Lécuyer, Pagani, Palmer, Reynaud, Rollion-Bard, Rollion-Bard, Sanyal, Schmitt, Spivack, Spivack, Vengosch, Vengosch, Zeebe   +39 more
core   +1 more source

Chapter 6 Mass spectrometry: Isotope ratio mass spectrometry

, 1997
Publisher Summary This chapter focuses on isotope ratio mass spectrometry (IRMS). IRMS determines the ratio of isotopes of a given element, such as H: 2 H and 12 C: 13 C present in a specimen. The total amount of each isotope also is determined.
openaire   +1 more source