caa a22 4500 606194908 CHVBK 20210128100916.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10934-015-0049-z doi (NATIONALLICENCE)springer-10.1007/s10934-015-0049-z Fluorene functionalized nanoporous SBA-15 incorporated into carbon paste electrode for trace copper determination [Elektronische Daten] [Faten Divsar, Neda Isapour, Hassan Kefayati, Alireza Badiei, Azizollah Nezhadali, Sara Easapour, Marzieh Yadavi] In this study, fluorene 3-[2-(2-aminoethylamino)ethylamino]propyl trimethoxy silane functionalized nanoporous SBA-15 was incorporated into carbon paste electrode for the potentiometric detection of Cu2+ ions in aqueous medium. With 15.5wt% FT-SBA-15 proportion, the developed electrode exhibited wide dynamic range of 1.0×10−6-1.0×10−2 molL−1 toward Cu2+ with a detection limit of 5.0×10−7molL−1 and a Nernstian slope of 29.6±1.0mVdecade−1. The electrode displayed rapid response (~44s), long-term stability (more than 6months) and high sensitivity. Moreover, the potentiometric responses could be carried out with a wide pH range of 3.9-6.6. Finally, the proposed electrode was successfully used as an indicator electrode in potentiometric titration of copper ions with EDTA and to determine the concentration of copper ions in seawater, tap water and black tea samples. The results showed a good correlation with the data obtained by graphite furnace atomic absorption spectrometry method. Springer Science+Business Media New York, 2015 Ion selective electrode nationallicence Functionalized nanoporous nationallicence Copper ions nationallicence Potentiometric detection nationallicence Divsar Faten Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran aut Isapour Neda Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran aut Kefayati Hassan Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran aut Badiei Alireza School of Chemistry, College of Science, University of Tehran, Tehran, Iran aut Nezhadali Azizollah Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran aut Easapour Sara Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran aut Yadavi Marzieh School of Chemistry, College of Science, University of Tehran, Tehran, Iran aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/6(2015-12-01), 1655-1661 1380-2224 22:6<1655 2015 22 10934 https://doi.org/10.1007/s10934-015-0049-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-015-0049-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Divsar Faten Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran aut NATIONALLICENCE 700 1- Isapour Neda Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran aut NATIONALLICENCE 700 1- Kefayati Hassan Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran aut NATIONALLICENCE 700 1- Badiei Alireza School of Chemistry, College of Science, University of Tehran, Tehran, Iran aut NATIONALLICENCE 700 1- Nezhadali Azizollah Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran aut NATIONALLICENCE 700 1- Easapour Sara Department of Chemistry, Payame Noor University (PNU), P.O. Box 19395-4697, Tehran, Iran aut NATIONALLICENCE 700 1- Yadavi Marzieh School of Chemistry, College of Science, University of Tehran, Tehran, Iran aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/6(2015-12-01), 1655-1661 1380-2224 22:6<1655 2015 22 10934