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Gradient enhanced NMR spectroscopyGradient enhanced NMR is a method for obtaining high resolution nuclear magnetic resonance spectra without the need for phase cycling. Gradient methodology is used extensively for two purposes, either rephasing (selection) or dephasing (elimination) of a particular magnetization transfer pathway. It includes the application of magnetic field gradient pulses to select specific coherences. By using actively shielded gradients, a gradient pulse is applied during the evolution period of the selected coherence to dephase the transverse magnetization and another gradient pulse refocuses the desired coherences remaining during the acquisition period. Additional recommended knowledge
Advantages
Drawbacks
Examples
(+)gradient 180°(x) (+)gradient
(+)gradient 180°(x) (-)gradient
References
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Gradient_enhanced_NMR_spectroscopy". A list of authors is available in Wikipedia. |