2D-NMR

Principle : 

 

1.    p/2 - pulse rotates-magnetization by 90°

2.    t₁ time interval allows the field vector to rotate

3.    p/2 pulse y-magnetization back to z-axis

 

--> absolute magnetization prop. to e^-t

--> Magnetization in direction of x-axis = M . sin 2pnt₁

--> Magnetization in direction of y-axis = M . cos 2ppt₁

 

NMR - Signal = Magnetization in x y thus M . sin 2ppt₁

 

Data resolved after first shift:

 

 

Cut through peaks in direction of t₁-axis gives the  FID !!