Journal Article Research Support, Non-U.S. Gov't Carbon Isotopes 449GLA0653 AR09D82C7G Aniline Compounds Blend of J-upscaling and Pure Shift Techniques Comparative Study Deuterium Different Pure Shift Techniques Evaluation Study K8CXK5Q32L Measurement of Homo- and Hetero- nuclear Scalar Couplings Nitrogen Isotopes Powders Pyrazines Pyridazines Pyrimidines Review SCR Selective Extraction of Homonuclear Couplings Solutions Spin Labels Ultrahigh resolution spectrum heteronuclear couplings homonuclear scalar couplings pure shift NMR pyridazine pyrimidine selective excitation