Results 91 to 100 of about 3,513,162 (340)

Isotope determination of sulfur by mass spectrometry in soil samples

Revista Brasileira de Ciência do Solo, 2012
Sulphur plays an essential role in plants and is one of the main nutrients in several metabolic processes. It has four stable isotopes (32S, 33S, 34S, and 36S) with a natural abundance of 95.00, 0.76, 4.22, and 0.014 in atom %, respectively. A method for
Alexssandra Luiza Rodrigues Molina Rossete, Josiane Meire Toloti Carneiro, Carlos Roberto Sant Ana Filho, José Albertino Bendassolli   +3 more
doaj   +1 more source

Integrative Mass Spectrometry Approaches to Monitor Protein Structures, Modifications, and Interactions [PDF]

, 2017
This thesis illustrates the current standing of mass spectrometry (MS) in molecular and structural biology. The primary aim of the herein described research is to facilitate protein characterization by combining mass spectrometric methods among each ...
Lössl, P., Sub Biomol.Mass Spectrometry & Proteom., Biomolecular Mass Spectrometry and Proteomics   +2 more
core  

A MASSive laboratory tour. An interactive mass spectrometry outreach activity for children [PDF]

, 2013
It is imperative to fascinate young children at an early stage in their education for the analytical sciences. The exposure of the public to mass spectrometry presently increases rapidly through the common media. Outreach activities can take advantage of
Jungmann, JH, Mascini, N.E., Heeren, R.M.A., Afd Scheikunde Algemeen, Smith, D.F., Sub Biomol.Mass Spectrometry & Proteom., Cillero-Pastor, B., Biomolecular Mass Spectrometry and Proteomics, Eijkel, G.B., Kiss, A., Chughtai, S., Duursma, M.C., Klinkert, I., Dep Scheikunde, Chughtai, K   +14 more
core   +1 more source

Efficient Hydroxyl Diffusion Triggers Surface Hydronium Enrichment and Bulk Proton Participation to Boost Alkaline Hydrogen‐Evolving Reaction

Advanced Materials, EarlyView.
For the first time, we shed light on the surface‐to‐bulk diffusion, induction, and reaction behaviors of OH−, H+, and H2O species on model oxides for alkaline hydrogen‐evolving reaction (HER). We first demonstrate that bulk OH− diffusion significantly affects the generation of proton sources and the diffusion/reaction behaviors of protons, thus ...
Daqin Guan, Hengyue Xu, Xiao Sun, Leqi Zhao, Chun‐Kuo Peng, Chao Jing, Yu‐Cheng Huang, Jiayi Tang, Nai Shi, Zezhou Lin, Xiaomin Xu, Zhiwei Hu, Zongping Shao   +12 more
wiley   +1 more source

Progress and Application of Mass Spectrometry Techniques for Single Particle Analysis in Nuclear Safeguard

Zhipu Xuebao
The nuclear Non-proliferation Treaty (NPT) is one of the cornerstones regulating the international order. To make sure that all the member states fulfill their obligation under the treaty, the International Atomic Energy Agency (IAEA) has constructed a ...
Li-ping WANG, Wei-hua XIE, Peng-hui XIONG, Si-wei SHI, Ling ZHANG, Zhen QIN   +5 more
doaj   +1 more source

Resonance ionization mass spectrometry for precise measurements of isotope ratios

, 2009
Resonance ionization mass spectrometry offers extremely high sensitivity and elemental selectivity in microanalysis, but the isotopic precision attainable by this technique has been limited.
Levine, Jonathan, Stephan, Thomas, Dauphas, Nicolas, Savina, Michael R., Davis, Andrew M., Knight, Kim B., Pellin, Michael J.   +6 more
core   +1 more source

Peak intensity prediction in MALDI-TOF mass spectrometry: A machine learning study to support quantitative proteomics [PDF]

, 2008
Timm W, Scherbart A, Boecker S, Kohlbacher O, Nattkemper TW. Peak intensity prediction in MALDI-TOF mass spectrometry: A machine learning study to support quantitative proteomics. BMC Bioinformatics.
Nattkemper, Tim Wilhelm ; https://orcid.org/, Nattkemper Tim W, Wiebke A Timm, Boecker, Sebastian, Kohlbacher, Oliver, Scherbart Alexandra, Kohlbacher Oliver, Sebastian Bocker, Tim W Nattkemper, Alexandra Scherbart, Scherbart, Alexandra, Timm, Wiebke, Timm Wiebke, Oliver Kohlbacher, Böcker Sebastian   +14 more
core   +1 more source

Side‐Chain‐Induced Interlayer Slipping in Metalloporphyrin COFs Enables Microenvironment and Spin‐State Regulation for Photocatalytic CO2 Reduction

Advanced Materials, EarlyView.
Alkoxy chain length drives a continuous transition from eclipsed AA to a serrated, slipped AA* configuration over Co‐porphyrin COFs. A moderate slip both contracts the pore channel to enrich CO2 and suppress hydrogen evolution, and enhances collective high‐spin of Co sites, which delivers a record CO production rate with high selectivity.
Jie He, Qingxuan Chen, Minxian Zhang, Wenhao Zhao, Aoni Xu, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Calibration graphs in isotope dilution mass spectrometry

Analytica Chimica Acta, 2015
Isotope-based quantitation is routinely employed in chemical measurements. Whereas most analysts seek for methods with linear theoretical response functions, a unique feature that distinguishes isotope dilution from many other analytical methods is the inherent possibility for a nonlinear theoretical response curve.
Pagliano, Enea, Mester, Zoltán, Meija, Juris   +2 more
openaire   +4 more sources

Decoding Synergistic Pathways in Bimetallic MOFs for Advanced Oxidation Processes

Advanced Materials, EarlyView.
This review presents a unified framework linking metal pairing and framework design with electronic structure, redox cycling, oxidant activation, reactive‐species generation, and catalytic performance across photocatalytic and oxidant‐based BMOF‐AOPs. The resulting design principles guide the development of hydrolytically stable and efficient BMOFs for
Karim El‐Naggar, Huayang Zhang, Shaobin Wang   +2 more
wiley   +1 more source