Application of the PROJECT concept for suppression of J modulation to DEPT for 13C-multilabeled analytes.

Incorporation of the PROJECT element for suppression of J modulation into the DEPT pulse sequence resulted in near-distortionless signals, thus realizing spectra more amenable to quantitative evaluation, a potential valuable aid in cases where (13)C-multilabeled compounds arise, e.g. as a result of feeding experiments in biosynthetic studies.