Question
Describe the principle of FT-NMR spectroscopy. Explain how is this spectroscopy advantageous over the CW-NMR spectroscopy.
Answer :
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Fourier Transform Nuclear Magnetic Resonance (FT-NMR) spectroscopy is based on the principle of nuclear magnetic resonance, where nuclei with non-zero spin placed in a strong external magnetic field absorb radiofrequency (RF) radiation and undergo transitions between magnetic energy levels. In a magnetic field, nuclear spins align either with or against the field, creating distinct energy states. When a short, intense RF pulse is applied, it excites all resonant nuclei simultaneously. This pulse causes the nuclei to absorb energy and move to higher energy states. After the pulse is turned off, the
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