Method of analyzing 3D NMR spectrum

Details Method of analyzing 3D NMR spectrum Method of analyzing 3D NMR spectrum

1990-12-26

1992-12-01

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324300, G01V 300

Patent

active

051682257

ABSTRACT:
There is disclosed a method of symmetrizing a three-dimensional NMR spectrum which is obtained by applying a preparation pulse or pulse sequence, sampling the resulting free induction decay signals with a sequence having two evolution periods and a detection period to obtain data S (t.sub.1, t.sub.2, t.sub.3), and taking the Fourier transform of the data to create the three-dimensional NMR spectrum .alpha. (.omega..sub.1, .omega..sub.2, .omega..sub.3). The 3D NMR spectrum is sliced perpendicularly to the frequency axis .omega..sub.3. Data about the 3D NMR spectrum is arithmetically processed in such a way that peaks having no symmetrical partners at symmertical positions determined also taking account of the direction of the frequency axis .omega..sub.3 are found and erased to obtain a spectrum .alpha..sub.1 (.omega..sub.1, .omega..sub.2, .omega..sub.3). The data about this spectrum is arithmetically processed in such a way that peaks complementary to the peaks having no symmetrical partners in the sliced planes of the spectrum .alpha..sub.1 (.omega..sub.1, .omega..sub.2, .omega..sub.3 ) are added to obtain a symmetrized spectrum .alpha..sub.2 (.omega..sub.1, .omega..sub.2, .omega..sub.3).

REFERENCES:
patent: 4134058 (1979-01-01), Ernst
patent: 4807148 (1989-02-01), Lacey
"3D NMR and Global Fold Determination of Ribonuclease H from E. coli with a 400 MHz NMR System", by Nagayama et al., JEOL News, vol. 27A, No. 1, (1991), pp. 2-7.

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