Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Gregory F. Brabeck"'
Publikováno v:
Journal of Mass Spectrometry. 54:857-868
A quadrupoles acceptance is a measure of its ability to catch ions with certain trajectories. One way to calculate acceptance is the method of ellipses. The method arose partly from a simplification that trajectories could be calculated for an electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fd5ee54a6789b381556972470225fb9
https://doi.org/10.1002/jms.4440
https://doi.org/10.1002/jms.4440
Publikováno v:
International Journal of Mass Spectrometry. 441:8-13
Digital waveform technology allows the waveform frequency and duty cycle to be instantly changed. These sudden changes affect ion motion and hence ion energy. Mass spectrometrists can take advantage of these sudden changes to isolate or excite trappe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37efbca0a19ff182d6d8c0d5f9257427
https://doi.org/10.1016/j.ijms.2019.03.007
https://doi.org/10.1016/j.ijms.2019.03.007
Publikováno v:
Analytical Chemistry. 89:4287-4293
Digital operation of linear ion guides allows them to operate as traps and mass filters by modulating the duty cycles of the two driving waveforms. A gas-filled (5 mTorr) digitally driven quadrupole ion guide was used to demonstrate ion isolation and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bcbc3a77b6af8d48109ce333975f92ce
https://doi.org/10.1021/acs.analchem.7b00356
https://doi.org/10.1021/acs.analchem.7b00356
Publikováno v:
International Journal of Mass Spectrometry. 404:8-13
Since their introduction, digital quadrupole mass spectrometers have described by analogy to traditional sinusoidal devices. However, digital quadrupoles exhibit unique behaviors and simplify many complex ion handling operations due to their uniquely
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::443800c1405f8d036740abd71aa8de9e
https://doi.org/10.1016/j.ijms.2016.04.002
https://doi.org/10.1016/j.ijms.2016.04.002
Publikováno v:
International Journal of Mass Spectrometry. 450:116303
The quadrupole acceptance of sinusoidal mass filters has been an area of interest for over fifty years. More recently, frequency dynamic rectangular waveform driven mass filters (colloquially digital mass filters) have been demonstrated. The acceptan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::620b573edc6ef08a947bfb333367b388
https://doi.org/10.1016/j.ijms.2020.116303
https://doi.org/10.1016/j.ijms.2020.116303
Autor:
Gregory F. Brabeck, Peter T. A. Reilly
Publikováno v:
International Journal of Mass Spectrometry. 392:86-90
Previously our group developed spreadsheet based programs for facile production of stability diagrams because any change in the duty cycle of the rectangular waveforms changes their shape. In this publication, these programs have been extended to cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5372a4999692ce3d01ba2b9bb7101025
https://doi.org/10.1016/j.ijms.2015.09.013
https://doi.org/10.1016/j.ijms.2015.09.013
Autor:
Nathan M. Hoffman, Ashley M. Moon, Katherine E. G. Donahoe, Peter T. A. Reilly, Zachary P. Gotlib, Gregory F. Brabeck, Bojana Opačić, Adam P. Huntley
Publikováno v:
Journal of the American Society for Mass Spectrometry. 29(2)
Ion traps and guides are integral parts of current commercial mass spectrometers. They are currently operated with sinusoidal waveform technology that has been developed over many years. Recently, digital waveform technology has begun to emerge and p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::034e14530fc567f292db1f6544de8334
https://pubmed.ncbi.nlm.nih.gov/28971335
https://pubmed.ncbi.nlm.nih.gov/28971335
Publikováno v:
Analytical Chemistry. 86:7757-7763
This publication demonstrates the use of digital waveform manipulation in linear ion guides to trap isolated ions and fragment them before mass analysis by time-of-flight mass spectrometry (TOF-MS). Ion trapping and collection was performed by wavefo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b818ac4d0a6e59d05320f5dc0a7e1838
https://doi.org/10.1021/ac501685v
https://doi.org/10.1021/ac501685v
Autor:
Peter T. A. Reilly, Gregory F. Brabeck
Publikováno v:
International Journal of Mass Spectrometry. 364:1-8
Spreadsheet based programs for facile production of stability diagrams have been developed to accommodate the need for rapid generation for any change in the duty cycle of rectangular waveforms. In this publication, we have used these programs to dem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fef730096de1659c9e14cc99c5f8aba
https://doi.org/10.1016/j.ijms.2014.03.008
https://doi.org/10.1016/j.ijms.2014.03.008
Autor:
Gregory F. Brabeck, Peter T. A. Reilly
Publikováno v:
Journal of the American Society for Mass Spectrometry. 27(6)
Quadrupole mass filters using non-sinusoidal driving potentials present exciting opportunities for new functionality. Predicting figures of merit like resolving power and transmission efficiency helps characterize these emerging devices. To this end,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd26dd580c5f48bb0aeed41e07211800
https://pubmed.ncbi.nlm.nih.gov/27091594
https://pubmed.ncbi.nlm.nih.gov/27091594