Worksheet: Attached Proton Tests

In this worksheet, we will practice interpreting attached proton test (APT) or distortionless enhancement by polarization transfer (DEPT) spectra.


Distortionless Enhancement by Polarisation Transfer (DEPT) would allow which of the following NMR peaks to be distinguished from one another?

  • AOrtho, meta, and para substituent groups on a benzene ring
  • BHydroxyl groups from amine groups
  • CAromatic carbons from aliphatic carbons
  • DMethylene groups from methyl groups

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