Improved J-compensated sequences based on short composite pulses.
July 3rd, 2008 | by admin |Improved J-compensated sequences based on short composite pulses.
Efficient J-compensated sequences that are shorter in duration and use less RF pulses have been created from short but very efficient composite 90 degrees RF pulses. The improved J-compensation transforms in-phase into antiphase magnetization and can be incorporated in any pulse sequence that involves evolution of heteronuclear J-couplings. The compensated sequences were tested and incorporated into an HMBC sequence. J-compensated experiments referred to as HMBC-J45+90A and HMBC-J45+90B, were found to be effective over a wide range of J values.
Torres AM, Bubb WA, Philp DJ, Kuchel PW.
Nanoscale Organisation and Dynamics Group, College of Health and Science, University of Western Sydney, Penrith South DC, NSW 1797, Australia.