Limitations of NQR spectroscopy
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Nuclear quadrupole resonance (NQR) utilizes radio-recurrence (RF) magnetic fields to incite and identify changes between sublevels of a uclear ground state, a depiction that likewise applies to nuclear magnetic resonance (NMR).
Disadvantages:
1. Only works for quadrupolar nuclei (spin ≥ 1) in solids – no solutions, or fluids
2. Low signal to noise ratio (SNR) compared to NMR (in NMR a high operating frequency can be chosen)
3. No ability to control NQR frequency
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