Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Ansgar T. Kirk"'
Publikováno v:
Proceedings, Vol 1, Iss 4, p 443 (2017)
Gas chromatographs equipped with electron capture detectors (ECD) are widely used for the analysis of electron affine substances. Achieving limits of detection in the low pptv-range, electron capture detectors are the most sensitive detectors availab
Externí odkaz:
https://doaj.org/article/db439230f7cb4d92b4a7abed2ea43241
Autor:
Florian Schlottmann, Christoph Schaefer, Ansgar T. Kirk, Alexander Bohnhorst, Stefan Zimmermann
Publikováno v:
Journal of the American Society for Mass Spectrometry. 34:893-904
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0d696b098aa3e47ff1127acfc10fcd4
https://doi.org/10.1021/jasms.2c00365
https://doi.org/10.1021/jasms.2c00365
Publikováno v:
tm - Technisches Messen. 89:847-858
Low-noise current meters are usually designed using high value feedback resistors. However, a high resistance reduces the maximum measurable current at a given output voltage and the maximum bandwidth at a given parasitic capacitance. Capacitive tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e498059d21b00b6c93c2259ebbb65fe
https://doi.org/10.1515/teme-2022-0049
https://doi.org/10.1515/teme-2022-0049
Publikováno v:
Analytical Chemistry 95 (2023), Nr. 18
Analytical Chemistry
Analytical Chemistry
In this work, we present a tandem ion mobility spectrometer (IMS) utilizing a highly efficient ion manipulator allowing to store, manipulate, and analyze ions under high electric field strengths and controlled ion-neutral reactions at ambient conditi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::998172e06d9f41f23bb84ffcf4e75cfe
https://www.repo.uni-hannover.de/handle/123456789/14247
https://www.repo.uni-hannover.de/handle/123456789/14247
Autor:
Thorsten Benter, Duygu Erdogdu, Walter Wißdorf, Ansgar T. Kirk, Maria Allers, Stefan Zimmermann, Hendrik Kersten
Publikováno v:
Journal of the American Society for Mass Spectrometry. 32:2436-2450
Ions are separated in ion mobility spectrometry (IMS) by their characteristic motion through a gas-filled drift tube with a static electric field present. Chemical dynamics, such as clustering and declustering of chemically reactive systems, and phys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2f749d5a977236e2d5a128c5eb689aa
https://doi.org/10.1021/jasms.1c00140
https://doi.org/10.1021/jasms.1c00140
Publikováno v:
Analytical chemistry. 94(28)
Efficient ionization of analyte molecules is a crucial step for the outstanding sensitivity of ion mobility spectrometers (IMS) used for trace gas detection. Here, we present a new ion source that combines the previously published extended field swit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::163bdcdf784db07a1d6b25d0c59b422a
https://pubmed.ncbi.nlm.nih.gov/35793469
https://pubmed.ncbi.nlm.nih.gov/35793469
Publikováno v:
Analytical Chemistry. 93:6062-6070
Printed circuit board (PCB) based drift tube ion mobility spectrometers enable the use of state-of-the-art production techniques to manufacture compact devices with excellent performance at minimum cost. The new PCB ion mobility spectrometer (PCB-IMS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4fce3aa186ae3d19b7423d118c233fa
https://doi.org/10.1021/acs.analchem.0c04140
https://doi.org/10.1021/acs.analchem.0c04140
Publikováno v:
tm - Technisches Messen. 88:262-273
While the resolving power of drift tube ion mobility spectrometers has been studied and modelled in detail over the past decades, no comparable model exists for the signal-to-noise-ratio. In this work, we develop an analytical model for the signal-to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05c4c69c54d7cdd799145597db1fc335
https://doi.org/10.1515/teme-2021-0013
https://doi.org/10.1515/teme-2021-0013
Publikováno v:
Journal of the American Society for Mass Spectrometry. 33(6)
High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) chemically ionize gaseous samples via reactant ions and separate the generated ions by their motion in a neutral gas under the influence of an electric field. Operation at reduced pressures of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25c3dff0c9071bba70ad33d869c7efde
https://pubmed.ncbi.nlm.nih.gov/35594571
https://pubmed.ncbi.nlm.nih.gov/35594571
Publikováno v:
Journal of the American Society for Mass Spectrometry : JASMS online 31 (2020), Nr. 7
High Kinetic Energy Ion Mobility Spectrometers (HiKE-IMS) are usually operated at an absolute pressure of 20 mbar reaching high reduced electric field strengths of up to 125 Td for controlled reaction kinetics. This significantly increases the linear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::452800234dc199c7b30dc0b89c920a72
https://doi.org/10.1021/jasms.0c00098
https://doi.org/10.1021/jasms.0c00098