ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

New complexanes. XLIV. Potentiometric study of chelate formation of N,N-bis(2-hydroxyethyl)glycine and D,L-N,N-bis(2-hydroxyethyl)-α-alanine with rare earth elements

E. Riečanská, E. Fűleová, and J. Majer

Department of Analytical Chemistry, Faculty of Pharmacy, Komenský University, 832 32 Bratislava

Abstract: The chelate stability constants of N,N-bis(2-hydroxyethyl)glycine and D,L-N,N-bis(2-hydroxyethyl)-α-alanine with La(III), Ce(III), Pr(III), Nd(III), Sm(III), Eu(III), Gd(III), Tb(III), Dy(III), Ho(III), Er(III), Tm(III), Yb(III), and Lu(III) were determined using the Potentiometrie method at ionic strength I=0.10 mol dm^-3 (KN0₃) and 293.2 K. The mole ratio of central ion to ligand in the formed complexes was found to be 1:1 and 1:2, respectively.

Full paper in Portable Document Format: 364a501.pdf

Chemical Papers 36 (4) 501–506 (1982)