Triangular Sampling of Multidimensional NMR Data Sets

✍ Scribed by Kamna Aggarwal; Marc A. Delsuc

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 173 KB
• Volume: 35
• Category: Article
• ISSN: 0749-1581
• DOI: 10.1002/(sici)1097-458x(199709)35:9<593::aid-omr154>3.0.co;2-#

✦ Synopsis

The experimental acquisition of large multidimensional (three-and four-dimensional) data sets is very timeconsuming and it is not uncommon that an experiment requires several days of acquisition time. Most of this time is required for good resolution on all spectroscopic axes, rather than for signal-to-noise reasons. Some schemes have been proposed to reduce this acquisition time while retaining high resolution, but all these schemes require a sophisticated deconvolution processing to restore to a normal data set. We present here a simple acquisition protocol which consists in acquiring those points in the plane which lie in the lower triangle. We show here that (t 1 , t 2 ) such a scheme reduces only very slightly the overall resolution, while permitting the reduction of the duration of a three-dimensional experiment by a factor of two. The same principle can be used to reduce the acquisition times by a factor of four for four-dimensional experiments and eight for Ðve dimensions while retaining the same quality of resolution.