Login / Signup

The NOAH HSQC-COSY module revisited: A theoretical and practical comparison of pulse sequences.

Jonathan R J YongĒriks KupčeTim D W Claridge
Published in: Journal of magnetic resonance (San Diego, Calif. : 1997) (2024)
NMR supersequences, as exemplified by the NOAH (NMR by Ordered Acquisition using 1 H detection) technique, are a powerful way of acquiring multiple 2D data sets in much shorter durations. This is accomplished through targeted excitation and detection of the magnetisation belonging to specific isotopologues ('magnetisation pools'). Separately, the HSQC-COSY experiment has recently seen an increase in popularity due to the high signal dispersion in the indirect dimension and the removal of ambiguity traditionally associated with HSQC-TOCSY experiments. Here, we describe how the HSQC-COSY experiment can be integrated as a 'module' within NOAH supersequences. The benefits and drawbacks of several different pulse sequence implementations are discussed, with a particular focus on how sensitivities of other modules in the same supersequence are affected.
Keyphrases
  • magnetic resonance
  • high resolution
  • blood pressure
  • loop mediated isothermal amplification
  • label free
  • real time pcr
  • solid state
  • big data
  • drug delivery
  • energy transfer
  • data analysis
  • amino acid