Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Nathan M. Hoffman"'
Autor:
Adam P. Huntley, Jixing Lyu, Jacob W. McCabe, Nathan M. Hoffman, Vicki H. Wysocki, Arthur Laganowsky, Thomas E. Walker, David H. Russell, Robert L. Schrader, Gordon A. Anderson, Peter T. A. Reilly, Benjamin J. Jones
Publikováno v:
Journal of the American Society for Mass Spectrometry. 32:2812-2820
Here, we describe a digital-waveform dual-quadrupole mass spectrometer that enhances the performance of our drift tube FT-IMS high-resolution Orbitrap mass spectrometer (MS). The dual-quadrupole analyzer enhances the instrument capabilities for studi
Autor:
Jacob W, McCabe, Benjamin J, Jones, Thomas E, Walker, Robert L, Schrader, Adam P, Huntley, Jixing, Lyu, Nathan M, Hoffman, Gordon A, Anderson, Peter T A, Reilly, Arthur, Laganowsky, Vicki H, Wysocki, David H, Russell
Publikováno v:
J Am Soc Mass Spectrom
Here, we describe a digital-waveform dual-quadrupole mass spectrometer that enhances the performance of our drift tube FT-IMS high-resolution Orbitrap mass spectrometer (MS). The dual-quadrupole analyzer enhances the instrument capabilities for studi
Publikováno v:
International Journal of Mass Spectrometry. 434:1-6
Digital Waveform Technology (DWT) has recently evolved to provide sufficient duty cycle resolution necessary to create a purely digital waveform-based mass filter. Digital operation provides a number of options that remain extremely challenging for s
Publikováno v:
Journal of the American Society for Mass Spectrometry. 29(10)
With advances in the precision of digital electronics, waveform generation technology has progressed to a state that enables the creation of m/z filters that are purely digitally driven. These advances present new methods of performing mass analyses
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
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
Publikováno v:
Review of Scientific Instruments. 89:084101
A comparison-based digital waveform generator has been developed that directly enables purely duty cycle controlled digital mass filters. This waveform generator operates by the comparison of a periodic waveform and a DC level to produce a digital wa
Publikováno v:
Review of Scientific Instruments. 88:016104
An inexpensive frequency variable square waveform generator (WFG) was developed to use with existing sinusoidal waveform driven ion funnels. The developed WFG was constructed using readily available low voltage DC power supplies and discrete componen
Autor:
Laura E. Slaymaker, Scott A. Darveau, Christopher L. Exstrom, Rodney J. Soukup, Matthew A. Ingersoll, J. Olejníček, Natale J. Ianno, Štěpán Kment, Nathan M. Hoffman, Matthew R. Jensen, A. Sarkar
Publikováno v:
MRS Proceedings. 1324
Many reported CuIn1-xGaxSe2 (CIGS) thin films for high-efficiency solar cells have been prepared via a two-stage process that consists of a high-vacuum film deposition step followed by selenization with excess H2Se gas or Se vapor. Removing toxic gas