Application of trilinear SLICING to analyse a single relaxation curve.
Determining the time constants and amplitudes of exponential decays from relaxation data is a common task in LF-NMR. In this communication, we present an application of the SLICING algorithm to evaluate its possibilities for solving this problem. The method, originally introduced to compare different samples, is applied here to analyse a single relaxation curve, using the embedding technique. To test this procedure, we acquired data sets from samples of liquids properly separated, and characterized by different relaxation times. The results show a good estimation of parameters, comparable with those obtained applying Marquardt's algorithm, when the components have sufficiently different relaxation times.
Manetti
Cesare
C
Dipartimento di Chimica, Università degli studi di Roma "La Sapienza," Rome, Italy. c.manetti@caspur.it
Castro
Cecilia
C
Zbilut
Joseph P
JP