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Mikkelsen Ø, Skogvold SM, Schrøder KH, et al. Evaluations of solid electrodes for use in voltammetric monitoring of heavy metals in samples from metallurgical nickel industry. Anal Bioanal Chem. 2003;377(2):322-6doi: 10.1007/s00216-003-2102-z.
Mikkelsen, �. �., Skogvold, S. M., Schrøder, K. H., Gjerde, M. I., & Aarhaug, T. A. (2003). Evaluations of solid electrodes for use in voltammetric monitoring of heavy metals in samples from metallurgical nickel industry. Analytical and bioanalytical chemistry, 377(2), 322-6. https://doi.org/10.1007/s00216-003-2102-z
Mikkelsen, Øyvind, et al. "Evaluations of solid electrodes for use in voltammetric monitoring of heavy metals in samples from metallurgical nickel industry." Analytical and bioanalytical chemistry vol. 377,2 (2003): 322-6. doi: https://doi.org/10.1007/s00216-003-2102-z
Mikkelsen Ø, Skogvold SM, Schrøder KH, Gjerde MI, Aarhaug TA. Evaluations of solid electrodes for use in voltammetric monitoring of heavy metals in samples from metallurgical nickel industry. Anal Bioanal Chem. 2003 Sep;377(2):322-6. doi: 10.1007/s00216-003-2102-z. Epub 2003 Jul 29. PMID: 12898113.
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Anal Bioanal Chem. 2003 Sep;377(2):322-6. doi: 10.1007/s00216-003-2102-z. Epub 2003 Jul 29.

Evaluations of solid electrodes for use in voltammetric monitoring of heavy metals in samples from metallurgical nickel industry.

Analytical and bioanalytical chemistry

Øyvind Mikkelsen, Silje Marie Skogvold, Knut H Schrøder, Magne Ivar Gjerde, Thor Anders Aarhaug

Affiliations

  1. Norwegian University of Science and Technology, Department of Chemistry, 7491 Trondheim, Norway. [email protected]

PMID: 12898113 DOI: 10.1007/s00216-003-2102-z

Abstract

Evaluation of different solid electrode systems for detection of zinc, lead, cobalt, and nickel in process water from metallurgical nickel industry with use of differential pulse stripping voltammetry has been performed. Zinc was detected by differential pulse anodic stripping voltammetry (DPASV) on a dental amalgam electrode as intermetallic Ni-Zn compound after dilution in ammonium buffer solution. The intermetallic compound was observed at -375 mV, and a linear response was found in the range 0.2-1.2 mg L(-1) (r(2)=0.98) for 60 s deposition time. Simultaneous detection of nickel and cobalt in the low microg L(-1) range was successfully performed by use of adsorptive cathodic stripping voltammetry (AdCSV) of dimethylglyoxime complexes on a silver-bismuth alloy electrode, and a good correlation was found with corresponding AAS results (r(2)=0.999 for nickel and 0.965 for cobalt). Analyses of lead in the microg L(-1) range in nickel-plating solution were performed with good sensitivity and stability by DPASV, using a working electrode of silver together with a glassy carbon counter electrode in samples diluted 1:3 with distilled water and acidified with H(2)SO(4) to pH 2. A new commercial automatic at-line system was tested, and the results were found to be in agreement with an older mercury drop system. The stability of the solid electrode systems was found to be from one to several days without any maintenance needed.

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