Use of Sm(iii)–{1,2-propanediamine-N,N,N′,N′-tetra(α,α-dideuterioacetate)} complex for NMR determination of absolute configuration of each α-amino acid in peptide hydrolysate mixtures

Abstract

¹H NMR analyses of individual α-amino acids in their mixture were simultaneously conducted in the presence of Sm-(pdta–d₈) in water: high regularity, promising for direct simultaneous determination of absolute configurations of each α-amino acids in peptide hydrolysate mixtures, was observed between absolute configuration and the induced shifts.