The Broadband Attached Proton Test (BAPT) sequence allows the user to easily record ¹³C-APT and quaternary carbon only spectra. Compared to earlier Attached Proton Test experiments, it preserves both tolerance for wide ranges of ¹J_CH and effective suppression of residual CH_n signals in the quaternary carbon only spectra.
Recording of edited spectra or quaternary carbon only spectra is made easy by a single, user-controllable constant.

This work was carried out in the group of Prof. Dr. Julien Furrer.

References:

• P. Bigler, I. Gjuroski, J. Furrer;
  "Broadband APT (BAPT): A Versatile APT Experiment with Improved J-Compensation and Optimal Suppression of Artifacts in Cq-only Spectra"
  ChemRxiv, 2023, preprint; doi:10.26434/chemrxiv-2023-z49qp.