Abstract
Accurate determination of multiple-component NMR relaxation times can be compromised by data acquisition nonlinearities which are not readily apparent from inspection of the relaxation data, The relaxation time estimates produced by two algorithms, DISCRETE and CONTIN, have been compared for simulated relaxation data corrupted by various amounts of nonlinearity for both linear and logarithmic data sampling. The accuracy of relaxation time estimates, particularly for two-component relaxation data, is seriously degraded by data nonlinearity. Recommendations are given for the maximum data nonlinearity for which accurate relaxation times can still be determined.
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