✦ LIBER ✦
A Procedure for Obtaining Pure Absorption 2D J-Spectra: Application to Quantitative Fully J-Decoupled Homonuclear NMR Spectra
✍ Scribed by P. Mutzenhardt; F. Guenneau; D. Canet
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 140 KB
- Volume
- 141
- Category
- Article
- ISSN
- 1090-7807
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✦ Synopsis
The phase-twisted lines, resulting from a double complex Fourier transform, can greatly alter the quality of two-dimensional spectra. This problem, which is generally overcome by experimental procedures (requiring twice as much time as a standard measurement), is inevitable in the two-dimensional J-resolved experiment. This experiment is revisited theoretically and a postprocessing treatment, leading to pure 2D J-spectra, is deduced. Quantitative fully J-decoupled homonuclear spectra are accordingly obtained by means of a projection onto the F2 axis after a 45°tilt.