Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Valerie Derpmann"'
Autor:
Valerie Derpmann, David Müller, Alexander Haack, Walter Wissdorf, Hendrik Kersten, Thorsten Benter
Publikováno v:
Journal of the American Society for Mass Spectrometry. 33(9)
Glass or metal inlet capillaries are commonly used for flow restriction in atmospheric pressure ionization mass spectrometers. They exhibit a high ion transmission rate and stability at most operating conditions. However, transferring unipolar curren
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d37822c66d72b928e062c20b53c552b7
https://pubmed.ncbi.nlm.nih.gov/36001770
https://pubmed.ncbi.nlm.nih.gov/36001770
Autor:
Hendrik Kersten, Klaus J. Brockmann, Thorsten Benter, Sonja Klee, Tiina J. Kauppila, Risto Kostiainen, Walter Wißdorf, Sascha Albrecht, Andries P. Bruins, Faezeh Dousty, Sebastian Klopotowski, Jack A. Syage, Valerie Derpmann, Damon B. Robb, Rob O'Brien
Publikováno v:
Journal of the American Society for Mass Spectrometry, 25(8), 1310-1321. SPRINGER
It is well documented since the early days of the development of atmospheric pressure ionization methods, which operate in the gas phase, that cluster ions are ubiquitous. This holds true for atmospheric pressure chemical ionization, as well as for m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f60eb735f652afe82034200409e9eb84
https://doi.org/10.1007/s13361-014-0891-2
https://doi.org/10.1007/s13361-014-0891-2
Autor:
David Müller, Hendrik Kersten, Valerie Derpmann, Walter Wißdorf, Christine Polaczek, Sebastian Klopotowski, Thorsten Benter, Yessica Brachthäuser, Klaus J. Brockmann, Markus Langner
Publikováno v:
Journal of the American Society for Mass Spectrometry. 27(9)
Erratum to : J. Am. Soc. Mass Spectrom (2016) DOI: 10.1007/s13361-016-1415-z In the preceding article BGas Flow Dynamics in Inlet Capillaries: Evidence for non Laminar Conditions^ by Wisdorf et al., the errors as listed below were not appropriately c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4871c84fec313ec37f9ef02913f2c5ba
https://pubmed.ncbi.nlm.nih.gov/27245455
https://pubmed.ncbi.nlm.nih.gov/27245455
Autor:
Gennady Fedosenko, Alexander Laue, Leonid Gorkhover, Hin Yiu Anthony Chung, Valerie Derpmann, Michel Aliman, Martin Antoni, Rüdiger Reuter
Publikováno v:
2016 27th Annual SEMI Advanced Semiconductor Manufacturing Conference (ASMC).
In this work, we introduce a new, very fast and extremely sensitive inline process mass spectrometry technique based on Fourier-Transform 3D-Quadrupole Ion Trap technology. With this new technology, we have successfully detected sub-ppbV AsH3 and sin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c51bdca65d6f3781f41218b42b9cb0a9
https://doi.org/10.1109/asmc.2016.7491140
https://doi.org/10.1109/asmc.2016.7491140
Autor:
Sebastian Klopotowski, David Müller, Valerie Derpmann, Hendrik Kersten, Thorsten Benter, Yessica Brachthäuser, Christine Polaczek, Markus Langner, Klaus J. Brockmann, Walter Wißdorf
Publikováno v:
Journal of the American Society for Mass Spectrometry. 27(9)
In this work, the characteristics of gas flow in inlet capillaries are examined. Such inlet capillaries are widely used as a first flow restriction stage in commercial atmospheric pressure ionization mass spectrometers. Contrary to the common assumpt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b3a9ba9dc55e51e301f46a760363aec
https://pubmed.ncbi.nlm.nih.gov/27439409
https://pubmed.ncbi.nlm.nih.gov/27439409
Publikováno v:
Rapid Communications in Mass Spectrometry. 26:1923-1933
RATIONALE The ionization mechanisms operative in negative ion atmospheric pressure mass spectrometry are far from being properly understood. In an excess of oxygen superoxide (O2–) is generally the primary charge-carrying species that is generated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbd607e49f3294eb481e16c297985d05
https://doi.org/10.1002/rcm.6303
https://doi.org/10.1002/rcm.6303
Publikováno v:
Journal of Molecular Spectroscopy. 263:150-159
The large-amplitude bending motion in CsOH, a ‘classical’ molecule whose microwave spectrum was first recorded in 1967, has been studied ab initio. The three-dimensional potential energy surface has been calculated at the RCCSD(T)_DK3/[QZP + g AN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b4a01ba117447fa104b0a97a68660f2
https://doi.org/10.1016/j.jms.2010.07.009
https://doi.org/10.1016/j.jms.2010.07.009
Autor:
Sascha Albrecht, Sonja Klee, Valerie Derpmann, Thorsten Benter, Fred Stroh, Klaus J. Brockmann, Sebastian Klopotowski
Publikováno v:
Review of scientific instruments 85(1), 014102-(2014). doi:10.1063/1.4854855
In this study a thermally sampling atmospheric pressure ionization mass spectrometer is described and characterized. The ion transfer stage offers the capability to sample cluster ions at thermal equilibrium and during this transfer fundamental proce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::628865a6e4679e12772ca6e241cd98c4
https://hdl.handle.net/2128/5931
https://hdl.handle.net/2128/5931
Autor:
Iustinian Bejan, Hannah Sonderfeld, Klaus J. Brockmann, Sonja Wilberscheid, Valerie Derpmann, David Mueller, Thorsten Benter, Ralf Koppmann
Publikováno v:
Journal of the American Society for Mass Spectrometry. 25(3)
We report on a novel method for atmospheric pressure ionization of compounds with elevated electron affinity (e.g., nitroaromatic compounds) or gas phase acidity (e.g., phenols), respectively. The method is based on the generation of thermal electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b93836d2c61cc8bfba6831652bb5c3ed
https://pubmed.ncbi.nlm.nih.gov/24399666
https://pubmed.ncbi.nlm.nih.gov/24399666
Publikováno v:
Analytical and bioanalytical chemistry. 405(22)
We provide experimental and theoretical evidence that the primary ionization process in the dopant-assisted varieties of the atmospheric pressure ionization methods atmospheric pressure photoionization and atmospheric pressure laser ionization in typ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9b671e7c2aa4df59b1265184ea6a980
https://pubmed.ncbi.nlm.nih.gov/23828208
https://pubmed.ncbi.nlm.nih.gov/23828208