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

Direct photometric determination of micro amounts of rare earth elements with Arsenazo I in certain metals in the presence of potassium cyanide

A. Košturiak

Lehrstuhl für Experimentelle Physik der Naturwissenschaftlichen Fakultät derP. J. Šafárik-Universität, 041 54 Košice

Abstract: The direct photometric detn. of microquantities of rare earth elements (RE) with Arsenazo I in metals forming stable cyano complexes is described. KCN is used to eliminate the interference by 10⁵-10⁶-fold excess Ag(I), Cd(II), Co(II), Cu(II), Ni(II), Pd(II), Pt(IV), and Zn(II). Al(III) interference is removed by adding Na sulfosalicylate. The detn. was performed by the action of Arsenazo I in triethanolamine buffer solns. at pH 7.5-9.5.

Full paper in Portable Document Format: 345a653.pdf (in German)

Chemical Papers 34 (5) 653–661 (1980)