8-Hydroxyquinoline has been used as a photometric reagent for the simultaneous determination of binary, ternary and quaternary mixtures of AI, Fe, Cu, Ti and Ni after extracting their complexes in chloroform and resolving the mixed spectrum obtained by means of a multicomponent analysis program based on a least-squares fitting algorithm. The use of first-derivative spectra allows better resolution of the samples and corrects for errors arising from incomplete phase separation. The average recoveries from the different mixtures assayed ranged between 99.4% (Ti) and 105.4% (Ni). © 1989, Elsevier Science Publishers B.V.. All rights reserved.
|Journal||Analytica Chimica Acta|
|Publication status||Published - 1 Jan 1989|