More polarization transfer DEPT

1

• More polarization transfer - DEPT
• DEPT (Distortionles Enhancement by Polarization
• Transfer) is another sequence that takes
  advantage of the
• surplus 1H population to see 13C signals.
  Furthermore, it can
• edit the signals in order to obtain response
  from CH, CH2,
• and CH3 according to the settings of the
  sequence

90x
180x
13C
90x
180x
fy
tD
tD
1H
tD
1H
2

• DEPT results for different f values
• Using pulegone as an example (real data)
• For f p / 2 (90), we edit the CH carbons

3

• DEPT (continued)
• If we plot the responses for different carbons
  versus the tip
• angle f of the 1H pulse, we get

p/2
3p/2
p/4
CH
CH2
CH3