ISSN:
1618-2650
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary Controlled adsorptive accumulation of orotic acid (vitamin B13) at the hanging mercury drop electrode (HMDE) provides the basis for the direct stripping measurement of that compound in nanomolar concentration. Differential pulse voltammetry applied to a sample at pH 11.20 fixed in NaOH has a detection limit of 5.0 × 10−10 mol/l of orotic acid (with 3 min of preconcentration). The cathodic stripping response is evaluated with respect to experimental parameters such as preconcentration time, preconcentration potential, bulk concentration and other parameters. Cathodic stripping voltammetry can be proposed for the determination of the orotic acid, the reproducibility of this method was studied.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00470728
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