A highly selective dual mode detection of Fe3+ ion sensing based on 1,5-dihydroxyanthraquinone in the presence of beta-cyclodextrin

摘要

1,5-Dihydroxyanthraquinone (1,5-DHAQ) and in the presence of beta-cyclodextrin (beta-CD) has been used to find Fe3+ ion in aqueous solution by UV-visible and fluorescence spectroscopy. The chromo-fluorogenic probe undergoes absorption and emission intensity enhancement upon binding to Fe3+ ion in pH 7 aqueous solutions. The enhancement of the chemosensor probe is attributed to a 1:1 inclusion complex formation between beta-CD and 1,5-DHAQ, which has been utilized as the basis for selective detection of Fe3+ ion. The chemosensors can be applied to the selectivity and sensitivity analysis which showed that the remarkable sensing limit of detection (LOD) was 73 * 10(-7) M (beta-CD/1,5-DHAQ:Fe3+). The proposed chemosensors based on 1,5-DIAQ and in the presence of beta-CD has a good selectivity, sensitivity and potential application to the determination of Fe3+ ion in environmental and biological systems. (C) 2014 Elsevier B.V. All rights reserved.