caa a22 4500 378927361 CHVBK 20180305123621.0 cr unu---uuuuu 161128e20041101xx s 000 0 eng 10.1524/ract.92.9.589.54997 doi (NATIONALLICENCE)gruyter-10.1524/ract.92.9.589.54997 Fluorescence characteristics of complex formation of europium(III)-salicylate [Elektronische Daten] [Noboru Aoyagi, T. Toraishi, Gerhard Geipel, H. Hotokezaka, S. Nagasaki, S. Tanaka] The complexation of salicylate with Eu3+ was studied by means of time-resolved laser-induced fluorescence spectroscopy (TRLFS) using ultra-short pulses at a concentration of sodium salicylate of 1.00×10-4M. Ionic media was kept constant at 0.1M NaClO4. pH was adjusted to 4.00. The concentration of Eu3+ was varied from 1.98×10-3M to 1.31×10-2M. From the fluorescence lifetime analysis of the salicylate, we confirmed that a dynamic quenching process did not take place, while static quenching proceeded under the experimental conditions. The Stern Volmer plots indicated only the formation of a 1:1 complex, and the stability constant was assigned to be logβ1,1= 2.08±0.02. This agrees with reported values, which have been determined by other techniques. This result shows that the studies on complex formation can be safely investigated quantitatively by means of TRLFS from not only the luminescence of Eu3+ but the fluorescence of salicylate. © 2004 Oldenbourg Wissenschaftsverlag GmbH Laboratory techniques, experiments nationallicence Analytical chemistry nationallicence Inorganic chemistry nationallicence Aoyagi Noboru aut Toraishi T. aut Geipel Gerhard aut Hotokezaka H. aut Nagasaki S. aut Tanaka S. aut Radiochimica Acta/International journal for chemical aspects of nuclear science and technology Oldenbourg Wissenschaftsverlag GmbH 92/9-11/2004(2004-11-01), 589-593 0033-8230 92:9-11/2004<589 2004 92 ract https://doi.org/10.1524/ract.92.9.589.54997 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/ract.92.9.589.54997 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Aoyagi Noboru aut NATIONALLICENCE 700 1- Toraishi T. aut NATIONALLICENCE 700 1- Geipel Gerhard aut NATIONALLICENCE 700 1- Hotokezaka H. aut NATIONALLICENCE 700 1- Nagasaki S. aut NATIONALLICENCE 700 1- Tanaka S. aut NATIONALLICENCE 773 0- Radiochimica Acta/International journal for chemical aspects of nuclear science and technology Oldenbourg Wissenschaftsverlag GmbH 92/9-11/2004(2004-11-01), 589-593 0033-8230 92:9-11/2004<589 2004 92 ract CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter