caa a22 4500 467943575 CHVBK 20180405193734.0 cr unu---uuuuu 170328e20050201xx s 000 0 eng 10.1007/s10809-005-0050-9 doi (NATIONALLICENCE)springer-10.1007/s10809-005-0050-9 (NATIONALLICENCE)springer-10.1007/PL00021922 Determination of arsenic(III) and copper(II) by stripping voltammetry in a mixed EDTA-phosphoric acid supporting electrolyte [Elektronische Daten] [A. Kamenev, A. Lyakhov, S. Orlov] The effect of the composition of a supporting electrolyte containing EDTA and H3PO4, the parameters of the analytical cycle, and the concentration of a depolarizer on the electrochemical behavior of arsenic(III) and copper(II) was studied by anodic stripping voltammetry at a gold-graphite electrode. The optimum conditions for determining these elements were found. Different techniques are proposed for the isolation of the analytical signals from the total voltammetric signal using postelectrolysis and subtracting voltammograms. It is shown that ≥0.007 µg/mL arsenic(III) can be determined in the presence of 30-fold amounts of copper(II) and ≥0.007 µg/mL copper(II) can be found in the presence of 40-fold amounts of arsenic(III). MAIK "Nauka/Interperiodica”, 2005 Kamenev A. Department of Chemistry, Moscow State University, Vorob'evy gory, 119992, Moscow, Russia aut Lyakhov A. Department of Chemistry, Moscow State University, Vorob'evy gory, 119992, Moscow, Russia aut Orlov S. Department of Chemistry, Moscow State University, Vorob'evy gory, 119992, Moscow, Russia aut Journal of Analytical Chemistry Nauka/Interperiodica 60/2(2005-02-01), 156-162 1061-9348 60:2<156 2005 60 10809 https://doi.org/10.1007/s10809-005-0050-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10809-005-0050-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kamenev A. Department of Chemistry, Moscow State University, Vorob'evy gory, 119992, Moscow, Russia aut NATIONALLICENCE 700 1- Lyakhov A. Department of Chemistry, Moscow State University, Vorob'evy gory, 119992, Moscow, Russia aut NATIONALLICENCE 700 1- Orlov S. Department of Chemistry, Moscow State University, Vorob'evy gory, 119992, Moscow, Russia aut NATIONALLICENCE 773 0- Journal of Analytical Chemistry Nauka/Interperiodica 60/2(2005-02-01), 156-162 1061-9348 60:2<156 2005 60 10809 NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00021922 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer