Pulsed Nuclear Magnetic Resonance
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چکیده
To observe nuclear magnetic resonance, the sample nuclei are first aligned in a strong magnetic field. In this experiment, you will learn the techniques used in a pulsed nuclear magnetic resonance apparatus (a) to perturb the nuclei out of alignment with the field and (b) to measure the small return signal as the misaligned nuclei precess in the field. Because the return signal carries information about the nuclear environment, the technique has become widely used for material analysis. Initially, you will study the behavior of hydrogen nuclei in glycerin because the signal is easy to find and interpret. Samples involving other nuclei and other nuclear environments can also be investigated. Theory
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