CH1012
                                         L1 /   
‹#›
                                         L1 /   
4
NMR III
When placed in a strong external magnetic field (Bo) the random nuclear magnets will align themselves with the field direction.
• The number of orientations = 2I + 1
• For 1H and 13C
   2I + 1 = 2   (I = 1/2)
- 2 orientations
parallel &
antiparallel
to Bo