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Nuclear Magnetic Resonance Determination of Reaction Rates

IP.com Disclosure Number: IPCOM000034460D
Original Publication Date: 1989-Feb-01
Included in the Prior Art Database: 2005-Jan-27

Publishing Venue

IBM

Related People

Authors:
Feig, E Greenleaf, F [+details]

Abstract

A method for determining nuclear magnetic resonance reaction rates is provided and comprises: a) selectively exciting a body along a desired plane; b) reexciting the body with a spin-echo at a point in time halfway between the selective excitation of the body and the rephasing of the induced free induction decay (FID); c) measuring the free induction decay (Eµ(t,u)) of the body over time; d) Fourier transforming the measured free induction decay with respect to time to obtain E(f,u); e) computing the time-dependent concentration of the molecules of the body that have not yet reacted (hk (u)) according to the equation E(f,u) = hk (u) Ek (f,u) where Ek (f,u) are values along a support set strip obtained from previously conducted excitation, reexcitation, and measurement experiments which correlate the Fourier transform of the measurements of individual species (k) to support sets, and where the species k present are determined from a comparison of the obtained plot of said Fourier transformed data to the individual species support sets; and f) repeating steps a) - e) with different spin-echo and rephasing times.