Optimizing STMAS
| Autor: | Clarisse Huguenard, Francis Taulelle, Zhehong Gan, Benno Knott |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Physics
Nuclear and High Energy Physics Magnetic Resonance Spectroscopy Magic angle Sulfates Isotropy Biophysics Pulse sequence Condensed Matter Physics Biochemistry Computational physics Calibration Magic angle spinning Condensed Matter::Strongly Correlated Electrons Spinning Excitation Coherence (physics) |
| Zdroj: | Journal of Magnetic Resonance. 156:131-137 |
| ISSN: | 1090-7807 |
| DOI: | 10.1006/jmre.2002.2548 |
| Popis: | The 2D satellite transition magic angle spinning (STMAS) experiment generates efficiently high-resolution isotropic NMR spectra of half-integer quadrupolar nuclei. The experiment involves excitation and coherence transfer of satellite transitions into the central transition. It requires efficient refocusing of satellite transitions and sample spinning at a very accurate magic angle to cancel the first-order quadrupolar interaction effect. A review of all parameters relevant to optimizing the STMAS experiment is presented, including pulse sequence calibration, regulating spinning speed, magic angle adjustment, optimization of satellite transition excitation, and coherence transfer for both I = 3/2 and Ior =5/2 nuclei. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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