@article{article_633816, title={Schiff bases carrying dipicolylamine groups for selective determination of metal ions in aqueous media. A phenanthrene-based fluorescent sensor for Hg2+ determination}, journal={Turkish Journal of Analytical Chemistry}, volume={1}, year={2019}, author={Gümrükçüoğlu, Abidin and Özbek, Nurhayat and Ak, Tuğba and Vanlı, Elvan and Ocak, Miraç and Ocak, Ümmuhan}, keywords={Ion sensor; Hg2+ determination; Dipicolylamine; Fluorescence}, abstract={<p class="MsoNormal" style="text-align:justify;line-height:150%;"> <b> <span lang="en-us" xml:lang="en-us">Abstract: </span> </b> <span lang="en-us" xml:lang="en-us">Four new dipicolylamine compounds carrying
anthracene, naphthalene, pyrene and phenanthrene groups were synthesized, and
their ion sensor properties were studied by means of emission spectrometry in
ethanol-water (1:1). It was disclosed that among a series of studied anions and
cations, only with Cd <sup>2+ </sup>, Zn <sup>2+ </sup>, Cu <sup>2+ </sup> and Hg <sup>2+ </sup>
cations, ligands formed complexes selectively. With spectrofluorimetric
measurements, the complexation stoichiometry and the complex stability
constants of the formed complexes were determined. A linear range from 0.10 µg
L <sup>-1 </sup>to <sup> </sup>0.15 mg L <sup>-1 </sup>where the fluorescence
intensity of the phenanthrene
derivative compound showed a regular decrease with the increase of the Hg <sup>2+ </sup>ion concentration was obtained. The method developed for the
determination of Hg <sup>2+ </sup>was applied to tap water samples. In order to
eliminate the matrix effect, a modified standard addition method was used. </span> <span lang="en-us" xml:lang="en-us">Detection
and quantification limits were 0.009 mg </span> <span lang="en-us" xml:lang="en-us"> L <sup>-1 </sup> </span> <span lang="en-us" xml:lang="en-us"> and 0.027 mg </span> <span lang="en-us" xml:lang="en-us"> L <sup>-1 </sup> </span> <span lang="en-us" xml:lang="en-us">, respectively. </span> <b> <span lang="en-us" xml:lang="en-us"> </span> </b> </p> <p> <b> </b> </p> <b> </b>}, number={1}, publisher={Miraç OCAK}, organization={The Scientific and Technological Research Council of Turkey (TUBITAK)}