Spectrophotometric studies and analytical application of gold(III), yttrium(III) and palladium(II) chelates with 7‐(2‐pyridylazo)‐5‐chloro‐8‐hydroxyquinoline
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 0‐10.64μg ml−1 for Au(III), Y(III) and Pd(II) respectively. A number of foreign ions were tes… Show more
Introduction
Analysis of Azo Compounds
Analysis of Azoxy Compounds
Analysis of Hydrazino Compounds
Azo Compounds as Analytical Tools
Hydrazines as Analytical Tools
Analytical Properties of Analytical Reagents
Introduction
Analysis of Azo Compounds
Analysis of Azoxy Compounds
Analysis of Hydrazino Compounds
Azo Compounds as Analytical Tools
Hydrazines as Analytical Tools
Analytical Properties of Analytical Reagents
Introduction
Elemental Analysis of Gold and Silver
Characterization and Determination of Organogold and Organosilver Compounds
Self‐Assembled Monolayers
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