caa a22 4500 469129808 CHVBK 20180323133201.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF00325120 doi (NATIONALLICENCE)springer-10.1007/BF00325120 Electrochemical behaviour of persulphate on carbon paste electrodes modified with Prussian blue and analogous compounds [Elektronische Daten] [M. Weißenbacher, K. Kalcher, H. Greschonig, W. Ng, W. Chan, A. Voulgaropoulos] Summary: Peroxodisulphate ("persulphate”) may be determined by direct current voltammetry (DCV) using carbon paste electrodes chemically modified with Prussian Blue, iron(III)-hexacyanoruthenate(II) or iron(III)-hexacyano-osmate(II). The determination is based on the exploitation of catalytic currents from the reduction of the modifiers. Best results are obtained for iron(III)-hexacyanoosmate(II) yielding a detection limit of 1 μg O 2 2− /ml (as persulphate) when using HCl (10−2 mol/l) as supporting electrolyte and measuring in the DCV-mode. Electrodes doubly-modified with the osmium compound and a liquid anion-exchanger (Amberlite LA2) allow determinations of persulphate after preconcentration under open circuit conditions, in the presence of hydrogen peroxide and perborate, with a detection limit of 20 ng O 2 2− /ml (as persulphate). Springer-Verlag, 1992 Weißenbacher M. Institut für Analytische Chemie, Karl-Franzens Universität, Universitätsplatz 1, A-8010, Graz, Austria aut Kalcher K. Institut für Analytische Chemie, Karl-Franzens Universität, Universitätsplatz 1, A-8010, Graz, Austria aut Greschonig H. Institut für Analytische Chemie, Karl-Franzens Universität, Universitätsplatz 1, A-8010, Graz, Austria aut Ng W. Hong Kong Polytechnic, Hung Hom, Kowloon, Hong Kong aut Chan W. Department of Chemistry, Hong Kong Baptist College, 224 Waterloo Road, Kowloon, Hong Kong aut Voulgaropoulos A. Department of Chemistry, Aristotelian University, GR-540 06, Thessaloniki, Greece aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 344/3(1992-03-01), 87-92 0937-0633 344:3<87 1992 344 216 https://doi.org/10.1007/BF00325120 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00325120 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Weißenbacher M. Institut für Analytische Chemie, Karl-Franzens Universität, Universitätsplatz 1, A-8010, Graz, Austria aut NATIONALLICENCE 700 1- Kalcher K. Institut für Analytische Chemie, Karl-Franzens Universität, Universitätsplatz 1, A-8010, Graz, Austria aut NATIONALLICENCE 700 1- Greschonig H. Institut für Analytische Chemie, Karl-Franzens Universität, Universitätsplatz 1, A-8010, Graz, Austria aut NATIONALLICENCE 700 1- Ng W. Hong Kong Polytechnic, Hung Hom, Kowloon, Hong Kong aut NATIONALLICENCE 700 1- Chan W. Department of Chemistry, Hong Kong Baptist College, 224 Waterloo Road, Kowloon, Hong Kong aut NATIONALLICENCE 700 1- Voulgaropoulos A. Department of Chemistry, Aristotelian University, GR-540 06, Thessaloniki, Greece aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 344/3(1992-03-01), 87-92 0937-0633 344:3<87 1992 344 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer