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Title: | Spectrophotmetric Studies and Analytical Application of Au(III), Y(III) and Pd(II) Chelates with 5-choloro-2-pyridylazo-8-hydroxyquinoline |
Authors: | ali z. abu zuhri adel h. radi |
Issue Date: | 1992 |
Publisher: | Journal of Chemical Technology and Biotechnology |
Abstract: | A spectrophotometric study of Au(III), Y(III) and Pd(II) complexes of a reagent 7-(2-pyridylazo)-5-chloro-8-hydroxyquinoline (PACHQ) is presented. Gold(III) forms a 2:1 (L:M) violet complex at pH 9.5 (50% ethanol), while Y(III) and Pd(II) form 2:1 (L:M) red complexes at pH 6.5 and 7.5 respectively. The stability of these complexes has been determined. Beer's law is valid over the concentration range 0-7.87, 0-8.89 and 0-10.64?g ml?1 for Au(III), Y(III) and Pd(II) respectively. A number of foreign ions were tested for their interference. Synthetic solutions identical in composition to some Au(III) and Y(III) alloys are used to ascertain the suitability of the reagent. |
URI: | http://repository.aaup.edu/jspui/handle/123456789/754 |
Appears in Collections: | Faculty & Staff Scientific Research publications |
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