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The procedure enables to determine Ni together with Co, in ammonia buffer 0.1\u2005M (pH\u20059.2) and in the presence of oxygen, and involves an adsorptive accumulation of metal\u2010dimethylglyoxime (Ni\u2010DMG and Co\u2010DMG) complexes on the electrode surface. For Ni and Co, the detection limits, obtained with 30\u2005s of accumulation time, were 0.6 and 1.0\u2005\u00b5g\u2009L<jats:sup>\u22121<\/jats:sup>, respectively. The method was free of metals (Cd<jats:sup>2+<\/jats:sup>, Cr<jats:sup>3+<\/jats:sup>, Cr<jats:sup>6+<\/jats:sup>, Cu<jats:sup>2+<\/jats:sup>, Fe<jats:sup>3+<\/jats:sup> and Pb<jats:sup>2+<\/jats:sup> up to 50\u2005\u00b5g\u2009L<jats:sup>\u22121<\/jats:sup>, Al<jats:sup>3+<\/jats:sup> and Mn<jats:sup>2+<\/jats:sup> up to 500\u2005\u00b5g\u2009L<jats:sup>\u22121<\/jats:sup>; Zn<jats:sup>2+<\/jats:sup> up to 300\u2005\u00b5g\u2009L<jats:sup>\u22121<\/jats:sup>) interferences up to the concentrations mentioned in brackets. The proposed method was validated for simultaneous determination of Ni and Co in a certified reference surface and river waters with good results.<\/jats:p>","DOI":"10.1002\/elan.201200643","type":"journal-article","created":{"date-parts":[[2013,3,13]],"date-time":"2013-03-13T16:23:15Z","timestamp":1363191795000},"page":"1247-1255","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":45,"title":["Simultaneous Determination of Nickel and Cobalt Using a Solid Bismuth Vibrating Electrode by Adsorptive Cathodic Stripping Voltammetry"],"prefix":"10.1002","volume":"25","author":[{"given":"Georgina M. S.","family":"Alves","sequence":"first","affiliation":[]},{"given":"J\u00falia M. C. S.","family":"Magalh\u00e3es","sequence":"additional","affiliation":[]},{"given":"Helena M. V. 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