Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Garett M. Leskowitz"'
Autor:
Juan F. Araneda, Rodrigo Mercado, Susanne D. Riegel, Christopher Green, Paul Hui, Garett M. Leskowitz
Publikováno v:
The Analyst. 146:882-888
A novel 7Li quantitative NMR (qNMR) method to analyze lithium was developed to determine the lithium content in real brine samples using benchtop NMR instruments. The method was validated, and limits of detection and quantification of 40 and 100 ppm,
Publikováno v:
Solid State Nuclear Magnetic Resonance. 11:73-86
A novel method of nuclear magnetic resonance (NMR) is described which promises to be preferable to known general methods at sample length scales below approximately 100 microm. Its advantages stem from the seemingly paradoxical combination of a homog
Autor:
Ryan A. Olsen, Nima Ghaderi, Mary E. Hatcher, Garett M. Leskowitz, Leonard J. Mueller, Kari Pederson
Publikováno v:
The journal of physical chemistry. A. 109(6)
We report use of dynamic nuclear magnetic resonance (NMR) to measure the amide rotational barrier in isonicotinamide. A significant challenge to obtaining good transition rates from dynamic NMR data is suppression of errors due to inherent line width
Autor:
Ramez A. Elgammal, Kyung-Ah Son, Daniel P. Weitekamp, C-S. Lee, Susanne Douglas, Nosang V. Myung, E. Urgiles, Jaroslava Z. Wilcox, Risaku Toda, D. Miller, Louis A. Madsen, T. George, Garett M. Leskowitz
Publikováno v:
SPIE Proceedings.
NASA's planetary exploration strategy is primarily targeted to the detection of extant or extinct signs of life. Thus, the agency is moving towards more in-situ landed missions as evidenced by the recent, successful demonstration of twin Mars Explora
We report the experimental realization of BOOMERANG (better observation of magnetization, enhanced resolution, and no gradient), a sensitive and general method of magnetic resonance. The prototype millimeter-scale NMR spectrometer shows signal and no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::55604b2efc4bd621dd14ea3cd6906631
https://resolver.caltech.edu/CaltechAUTHORS:MADpnas04
https://resolver.caltech.edu/CaltechAUTHORS:MADpnas04
Autor:
Ryan A. Olsen, Christopher A. Reed, Leonard J. Mueller, Douglas W. Elliott, Garett M. Leskowitz, Kee-Chan Kim, Jochem Struppe
Publikováno v:
Mueller, LJ; Elliott, DW; Leskowitz, GM; Struppe, J; Olsen, RA; Kim, KC; et al.(2004). Uniform-sign cross-peak double-quantum-filtered correlation spectroscopy. Journal of Magnetic Resonance, 168(2), 327-335. doi: 10.1016/j.jmr.2004.03.017. UC Riverside: Retrieved from: http://www.escholarship.org/uc/item/9895c784
Journal of magnetic resonance (San Diego, Calif. : 1997), vol 168, iss 2
Journal of magnetic resonance (San Diego, Calif. : 1997), vol 168, iss 2
We detail the uniform-sign cross-peak double-quantum-filtered correlation spectroscopy (UC2QF COSY) experiment, a new through-bond correlation method for disordered solids. This experiment is a refocused version of the popular double-quantum-filtered
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37e283ff350b97f2bf7f78e026317e26
http://www.escholarship.org/uc/item/9895c784
http://www.escholarship.org/uc/item/9895c784
Publikováno v:
Physical Review A. 69
Reconstruction of a reduced density operator for weakly coupled systems of spins $\frac{1}{2}$ from fits to nuclear magnetic resonance spectra is described in detail. Particular emphasis is placed on data treatment procedures that specify fewer than
Autor:
Daniel P. Weitekamp, T. George, A. Chang-Chien, Louis A. Madsen, Weilong Tang, Garett M. Leskowitz
Publikováno v:
2001 IEEE Aerospace Conference Proceedings (Cat. No.01TH8542).
NMR is the most widely used spectroscopic technique for characterization of molecular structures and reactions. NMR is especially powerful in detecting the presence of water and distinguishing between arbitrary physisorbed and chemisorbed states. Thi
Publikováno v:
Infrared Fiber Optics III.
A series of FT-IR spectrometer based remote sensing systems have been developed taking advantage of the new technology of IR transmitting optical fibers. The systems may be used to monitor the chemical composition of solid, liquid and gas phase sampl
Publikováno v:
Infrared Fiber Optics III.
The evanescent-wave spectrum of a sample surrounding the core of an optical fiber is a complex function of the optical constants of the media involved as well as the geometry of the sensing fiber. We develop a simple theory for evanescent-wave absorp