caa a22 4500 463219104 CHVBK 20180405153206.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1134/S1061934807070167 doi (NATIONALLICENCE)springer-10.1134/S1061934807070167 Determination of ultramicroquantities of Au(III) by its catalytic effect on 4-hydroxyl coumarone oxidation with potassium permanganate [Elektronische Daten] [B. Petković, R. Simonović, R. Micić] A simple and fast kinetic method is based on the oxidation of 4-OH coumarone using KMnO4 and the determination of ultramicroamounts of Au(III) by its catalytic effect on this reaction. The sensitivity of the method is 25 ng/mL. The relative error ranges between 9.20-3.90% for the concentration interval 5 × 10−8-2 × 10−7 g/mL. The selectivity of the method is very good, and the effect of foreign ions is investigated. The proposed approach has been applied to the determination of traces of Au(III) in copper ore. Pleiades Publishing, Ltd., 2007 Petković B. Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Priština, 38220, Kosovska Mitrovica, Serbia aut Simonović R. Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Priština, 38220, Kosovska Mitrovica, Serbia aut Micić R. Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Priština, 38220, Kosovska Mitrovica, Serbia aut Journal of Analytical Chemistry Nauka/Interperiodica 62/7(2007-07-01), 697-700 1061-9348 62:7<697 2007 62 10809 https://doi.org/10.1134/S1061934807070167 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S1061934807070167 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Petković B. Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Priština, 38220, Kosovska Mitrovica, Serbia aut NATIONALLICENCE 700 1- Simonović R. Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Priština, 38220, Kosovska Mitrovica, Serbia aut NATIONALLICENCE 700 1- Micić R. Department of Chemistry, Faculty of Natural Sciences and Mathematics, University of Priština, 38220, Kosovska Mitrovica, Serbia aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 62/7(2007-07-01), 697-700 1061-9348 62:7<697 2007 62 10809 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer