Determination of Mo(VI) with 2-benzylideneiminobenzohydroxamic acid (2-BIBH) in urine by cathodic stripping voltammetry |
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| Authors: | L. Calvo Blˉazquez R. M. Garcia-Moncó A. Guiberteau Cabanillas A. Sánchez Misiego |
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| Affiliation: | (1) Department of Analytical Chemistry and Electrochemistry, University of Extremadura, E-06071 Badajoz, Spain;(2) Department of Analytical Chemistry, University of Extremadura, E-06071 Badajoz, Spain |
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| Abstract: | Summary Controlled adsorptive accumulation of Mo(VI)-2-BIBH at the hanging mercury drop electrode (HMDE) provides the basis for the direct stripping measurement of Mo(VI) in nanomolar concentration. The cathodic stripping response is evaluated with respect to experimental parameters such as preconcentration time, preconcentration potential and others. A differential pulse cathodic stripping voltammetric method for the determination of Mo(VI) with 2-BIBH in urine is proposed. The detection limit is 10–9 mol/l Mo(VI), standard deviation for 5×10–8 mol/l is ±1.58×10–9 mol/l.
Bestimmung von MolybdÄn(VI) mit 2-BenzylideniminobenzohydroxamsÄure (2-BIBH) in Harn durch kathodische Stripping-Voltammetrie |
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