Quality control of benserazide-levodopa and carbidopa-levodopa tablets by capillary zone electrophoresis (Articolo in rivista)

Type
Label
  • Quality control of benserazide-levodopa and carbidopa-levodopa tablets by capillary zone electrophoresis (Articolo in rivista) (literal)
Anno
  • 2000-01-01T00:00:00+01:00 (literal)
Alternative label
  • Fanali S, Pucci V, Sabbioni C, Raggi MA (2000)
    Quality control of benserazide-levodopa and carbidopa-levodopa tablets by capillary zone electrophoresis
    in Electrophoresis (Weinh., Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Fanali S, Pucci V, Sabbioni C, Raggi MA (literal)
Pagina inizio
  • 2431 (literal)
Pagina fine
  • 2437 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 21 (literal)
Rivista
Note
  • PubMe (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IMC-CNR; University of Bologna; University of Bologna;University of Bologna;University of Bologna; (literal)
Titolo
  • Quality control of benserazide-levodopa and carbidopa-levodopa tablets by capillary zone electrophoresis (literal)
Abstract
  • In modern practice, the treatment of Parkinson's disease and syndrome is carried out using pharmaceutical formulations containing a combination of levodopa and a decarboxylation inhibitor (carbidopa or benserazide). Two pharmaceutical formulations were quantified by capillary zone electrophoresis using two procedures which differed only in the kind of background electrolyte used. One procedure used a 25 mM phosphate buffer, pH 2.5, while the second one used a 25 mM borate buffer, pH 8.5. The electrophoretic analysis was carried out using an uncoated fused- silica capillary, a separation voltage of 20 kV with currents typically less than 60 ?A, and spectrophotometric detection at 205 nm. Calibration curves were performed for levodopa (concentration range 1-100 ?g/mL), for carbidopa and benserazide (1-50 ?g/mL), and the plots of the peak area versus concentration were found to be linear with a correlation coefficient better than 0.9990. Satisfactory results were obtained when commercial tablets were analyzed in terms of accuracy (98-102%), repeatability (0.6-2.0%), and intermediate precision (1.1-2.6%). © WILEY-VCH Verlag GmbH, 2000. (literal)
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