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He use of sulphophtalein dyes immobilized on anionite AB-17x8 to determine the contents of Pb(II), Cu(II), Hg(II) and Zn(II) in liquid medium
(2017) Kostenko, Elizaveta; Melnyk, Lyudmila; Matko, Svetlana; Malovanyy, Miroslav
The conditions of the immobilization of xylenol orange, methylthymol blue, pyrocatechol violet, and chromazurol S at the surface of AB-17×8 anionite were studied. The interaction of Cu(II), Pb(II), Zn(II), Hg(II) ions with obtained solid-phase reagents was investigated. The efficiency of the purification of apple juice with such natural adsorbent of Cherkasy deposits (Ukraine) as palygorskite was studied. The optimum conditions of the reactions, quantitative characteristics of the composition and the surface compound stability, the efficiency of the anion exchanger with the immobilized sulphophthalein dyes were determined.
Solid phase spectrophotometric determination of copper (II) using SPADNS
(2003) Kostenko, Elizaveta
The interaction of Cu (II) with SPADNS in the solid-phase was studied. The optimum conditions of the reaction and the composition of complex that is formed at the surface were found, and a scheme was proposed for the interaction at the phase boundary. A solid-phase spectrophotometric procedur was developed for determination of Cu (II).