Experimental methods: pulses, the vector model and relaxation

Quiz Content

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. Fourier-transform NMR experiments when compared to continuous wave experiments

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. If signal averaging is not being used the intensity of the NMR signal detected in the x,y plane is maximized when

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. For small molecules two types of relaxation processes are important, which of the following statements is correct?

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. Among relaxation mechanisms

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. Too short a relaxation delay between subsequent NMR measurements is of particular significance for 13C spins and may result in

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. Heteronuclear decoupling is a powerful procedure used during acquisition of many insensitive spins, e.g., 13C as

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. In an inversion recovery experiment to measure T1

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. In an experiment to measure T2 a 90° x pulse was used. T2 can be determined from

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. Spectral editing using differences in spin-lattice relaxation times, T1, for different sites

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. Magnetic resonance imaging relies on the application of

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