@article{article_638912, title={A Turn-on Fluorescent Sensor For Cadmium Ion Detection In Aqueous Solutions}, journal={Journal of the Turkish Chemical Society Section A: Chemistry}, volume={7}, pages={277–286}, year={2020}, DOI={10.18596/jotcsa.638912}, author={Aydın, Ziya}, keywords={Fluorescent,Sensor,Cadmium,Rhodamine B}, abstract={<span style="font-size:10pt;line-height:115%;font-family:Verdana, ’sans-serif’;" lang="en-us" xml:lang="en-us">Fluorescent sensors have attracted an important
interest due to their advantages such as high selectivity, rapid response, easy
to use etc. <b> <span>  </span> </b>In this study, <b> </b> <span style="color:#000000;">a rhodamine based
fluorescent sensor, RhDP, was synthesized, and used for selective detection of Cd <sup>2+ </sup>
ions. The sensor responds to Cd <sup>2+ </sup> via the coordination induced
fluorescence activation (CIFA) mechanism. RhDP gives a very fast and reversible
fluorescence response to Cd <sup>2+ </sup> in the presence of the metal ions tested. </span> </span> <span style="font-size:10pt;line-height:115%;font-family:Verdana, ’sans-serif’;color:#000000;" lang="en-us" xml:lang="en-us">The complex stoichiometry between RhDP and Cd <sup>2+ </sup> was found to
be 1:1 and the binding constant was calculated as </span> <span style="font-size:10pt;line-height:115%;font-family:Verdana, ’sans-serif’;color:#000000;" lang="en-us" xml:lang="en-us"> 2.70 × 10 <sup>7 </sup>M <sup>-1 </sup> </span> <span style="font-size:10pt;line-height:115%;font-family:Verdana, ’sans-serif’;color:#000000;" lang="en-us" xml:lang="en-us">in ACN/HEPES buffer (10 mM,
pH: 7.05, v/v 1:1). </span> <span style="font-size:10pt;line-height:115%;font-family:Verdana, ’sans-serif’;" lang="en-us" xml:lang="en-us">The fluorescent detection limit of RhDP for Cd <sup>2+ </sup>
was found to be 0.218  </span> <span style="font-size:10pt;line-height:115%;font-family:Verdana, ’sans-serif’;" lang="en-us" xml:lang="en-us">µ </span> <span style="font-size:10pt;line-height:115%;font-family:Verdana, ’sans-serif’;" lang="en-us" xml:lang="en-us">M, which gave a marked sensitivity towards Cd <sup>2+ </sup>. </span>}, number={1}, publisher={Turkish Chemical Society}