首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Application of trilinear SLICING to analyse a single relaxation curve
Authors:Manetti Cesare  Castro Cecilia  Zbilut Joseph P
Institution:Dipartimento di Chimica, Università degli studi di Roma "La Sapienza," Rome, Italy. c.manetti@caspur.it
Abstract: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.
Keywords:SLICING  LF-NMR  Exponential decay  Curve fitting  Transverse relaxation time T2
本文献已被 ScienceDirect PubMed 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号