Zobrazeno 1 - 10
of 104
pro vyhledávání: '"David W. Koppenaal"'
Autor:
Aparna Nagarajan, Mowei Zhou, Amelia Y. Nguyen, Michelle Liberton, Komal Kedia, Tujin Shi, Paul Piehowski, Anil Shukla, Thomas L. Fillmore, Carrie Nicora, Richard D. Smith, David W. Koppenaal, Jon M. Jacobs, Himadri B. Pakrasi
Publikováno v:
Biomolecules, Vol 9, Iss 8, p 374 (2019)
Phycobilisomes (PBSs) are large (3−5 megadalton) pigment-protein complexes in cyanobacteria that associate with thylakoid membranes and harvest light primarily for photosystem II. PBSs consist of highly ordered assemblies of pigmented phycobiliprot
Externí odkaz:
https://doaj.org/article/008264ac123e484c8eb7114944b5efbb
Autor:
Edward D. Hoegg, R. Kenneth Marcus, Ryszard Lobinski, Joanna Szpunar, David W. Koppenaal, Simon Godin
Publikováno v:
Analytical Chemistry. 93:11506-11514
Many fields of basic and applied sciences, including geochronology, astronomy, metabolism, etc., rely on the ability of mass spectrometry to obtain isotope ratio measurements having a high degree of certainty. The inability to resolve difficult isoba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7cbd4a8bcb44a42c918e9e9fb6732719
https://doi.org/10.1021/acs.analchem.1c01795
https://doi.org/10.1021/acs.analchem.1c01795
Publikováno v:
Mass Spectrometry Reviews. 42:652-673
In a world where information-rich methods of analysis are often sought over those with superior figures of merit, there is a constant search for ionization methods which can be applied across diverse analytical systems. The liquid sampling-atmospheri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd918f4a2d44492d54a4d95031e7e2e1
https://doi.org/10.1002/mas.21720
https://doi.org/10.1002/mas.21720
Autor:
Minviluz G. Stacey, David W. Koppenaal, Sterling Evans, Ljiljana Paša-Tolić, Beverly J. Agtuca, Gary Stacey, Dong Xu, Yang Liu, Laith Z. Samarah, Christopher R. Anderton, Akos Vertes, Sylwia A. Stopka
Publikováno v:
The Plant Journal. 103:1937-1958
The establishment of the nitrogen-fixing symbiosis between soybean and Bradyrhizobium japonicum is a complex process. To document the changes in plant metabolism as a result of symbiosis, we utilized laser ablation electrospray ionization-mass spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3416dc70422380186c78be1fca959a96
https://doi.org/10.1111/tpj.14815
https://doi.org/10.1111/tpj.14815
Autor:
Akos Vertes, Dong Xu, Gary Stacey, Sterling Evans, Ljiljana Paša-Tolić, Yang Liu, Beverly J. Agtuca, Christopher R. Anderton, Thalita Regina Tuleski, Sylwia A. Stopka, Rose A. Monteiro, Fernanda Plucani do Amaral, David W. Koppenaal
Publikováno v:
Molecular Plant-Microbe Interactions®. 33:272-283
Over the past decades, crop yields have risen in parallel with increasing use of fossil fuel–derived nitrogen (N) fertilizers but with concomitant negative impacts on climate and water resources. There is a need for more sustainable agricultural pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::743e2e9bb2b4d6c41d80f78f12036558
https://doi.org/10.1094/mpmi-06-19-0174-r
https://doi.org/10.1094/mpmi-06-19-0174-r
Publikováno v:
Journal of Analytical Atomic Spectrometry. 35:1969-1978
A new, multi-electrode, liquid sampling glow discharge ionization source for mass spectrometry is described. This ion source consists of multiple (2–4) counter (anode) electrodes in comparison to prior single counter electrode designs of this type.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f615aacbea727091410bf5c69fa0563
https://doi.org/10.1039/d0ja00142b
https://doi.org/10.1039/d0ja00142b
Autor:
David W. Koppenaal, R. Kenneth Marcus
Publikováno v:
Applied Spectroscopy. :000370282211479
Just over a decade ago, a truly outside-of-the-box approach to isotope ratio mass spectrometry (IRMS) was undertaken between research groups at Clemson University and the Pacific Northwest National Laboratory. The original motivation dealt with proje
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0562ee3588bb8e0bb64b229613906be9
https://doi.org/10.1177/00037028221147927
https://doi.org/10.1177/00037028221147927
Autor:
Ryszard Lobinski, R. Kenneth Marcus, Edward D. Hoegg, David W. Koppenaal, Simon Godin, Joanna Szpunar
Publikováno v:
Journal of The American Society for Mass Spectrometry
Journal of The American Society for Mass Spectrometry, Springer Verlag (Germany), 2019, 34 (7), pp.1387-1395. ⟨10.1007/s13361-019-02183-w⟩
Journal of The American Society for Mass Spectrometry, Springer Verlag (Germany), 2019, 34 (7), pp.1387-1395. ⟨10.1007/s13361-019-02183-w⟩
International audience; Many fundamental questions of astrophysics, biochemistry, and geology rely on the ability to accurately and precisely measure the mass and abundance of isotopes. Taken a step further, the capacity to perform such measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dca260a4d66464c842b8c92b4505b9cc
https://doi.org/10.1007/s13361-019-02183-w
https://doi.org/10.1007/s13361-019-02183-w
Autor:
David W. Koppenaal, Sarah J. Fansler, Ljiljana Paša-Tolić, Janet K. Jansson, Jared B. Shaw, Rene M. Boiteau, Yuliya Farris
Publikováno v:
Metallomics. 11:166-175
The chemical structure of organic molecules profoundly impacts their interactions with metal ions and mineral phases in soils. Understanding the sources and cycling of metal-chelating compounds is therefore essential for predicting the bioavailabilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddf143df3ec1556ded398914ad707251
https://doi.org/10.1039/c8mt00252e
https://doi.org/10.1039/c8mt00252e
Autor:
Simon Godin, R. Kenneth Marcus, Joanna Szpunar, Ryszard Lobinski, David W. Koppenaal, Edward D. Hoegg
Publikováno v:
Journal of Analytical Atomic Spectrometry
Journal of Analytical Atomic Spectrometry, Royal Society of Chemistry, 2019, 34 (7), pp.1387-1395. ⟨10.1039/C9JA00154A⟩
Journal of Analytical Atomic Spectrometry, Royal Society of Chemistry, 2019, 34 (7), pp.1387-1395. ⟨10.1039/C9JA00154A⟩
International audience; The coupling of a combined atomic and molecular (CAM) ionization source, the liquid sampling-atmospheric pressure glow discharge (LS-APGD) microplasma to an Orbitrap Fusion Lumos Tribrid 1M mass spectrometer is described as a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc810dd25082a3865abb3f924fb91f50
https://doi.org/10.1039/c9ja00154a
https://doi.org/10.1039/c9ja00154a