Abstract
1,2-Diaminoanthraquinone forms a 1∶1 inclusion complex withβ-cyclodextrin in aqueous media and at different pH. This can be employed to solubilize the anthraquinone in water for use as a ligand for metal ions. This ligand can be used to determine palladium at trace levels spectrophotometrically. The limit of detection is 11 ng/ml and the R.S.D. is 2.1%. The performance can be improved by using derivative spectrometry.
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Garcia Sanchez, F., Hernandez Lopez, M. & de Gracia Villodres, E. Photometric determination of palladium with the inclusion complex 1,2-Diaminoanthraquinone-β-cyclodextrin as ligand. Mikrochim Acta 92, 217–224 (1987). https://doi.org/10.1007/BF01201842
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DOI: https://doi.org/10.1007/BF01201842