NMR - The NMR Spectrometer => 11/10/10 11 The NMR Graph E=h...

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11/10/10 11 The NMR Spectrometer =>
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11/10/10 22 The NMR Graph => = E = h & = & h B 0 Use simple equation to convert magnetic field strength to absorbance.
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Click to edit Master subtitle style 11/10/10 Precession Magnetization for a spin 1/2 sample. (a) In the absence of the static magnetic field, the population of α and β spin states are equal, while (b) in the presence of the field M0 is non- zero and the precession of the spins occurs at the Larmor frequency ν = γ Ν/Β2 π. “Continuous wave” Determine absorbtion of radiowaves as a function of frequency “Fourier Transform”
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11/10/10 Excite all nuclei with a short intense “broadband” pulse of radiowaves Monitor intensity of radiowaves that are emitted as the magnetically excited nuclei returns to its ground state. Plot of signal vs time will reflect the sum of the emissions of all of the excited nuclei This plot of intensity vs time contains all of the frequency information for the excited nuclei. A fourier tansform is a mathematical
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This note was uploaded on 11/10/2010 for the course CHE Intermedia taught by Professor Dr.richard during the Spring '10 term at SUNY Buffalo.

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NMR - The NMR Spectrometer => 11/10/10 11 The NMR Graph E=h...

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