NMR studies of combined lanthanide shift and relaxation agents for differential characterization of 23Na in a two-compartment model system.
Spin relaxation and chemical shifts by lanthanide chelate complexes are used to distinguish 23Na signals in a simulated two-compartment model. Both effects are significant in EDTA, DTPA, and TPP complexes of Gd and in the TPP complex of Dy. The simultaneous measurement of these properties is illustrated and represents a promising method for monitoring sodium concentrations and fluxes including fast transport components.
Brown, MA; Stenzel, TT; Ribeiro, AA; Drayer, BP; Spicer, LD
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