SciELO - Scientific Electronic Library Online

 
vol.47 número3Potential antiplasmodial and antimalarial agents of natural and synthetic originExtraction and encapsulation of phenolic compounds from rice hus índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


Revista Colombiana de Ciencias Químico - Farmacéuticas

versão impressa ISSN 0034-7418

Resumo

TKACH, Volodymyr V. et al. The theoretical evaluation of the use of trivalent vanadium oxyhydroxide in the electrochemical determination of nandrolone. Rev. colomb. cienc. quim. farm. [online]. 2018, vol.47, n.3, pp.400-409. ISSN 0034-7418.  https://doi.org/10.15446/rcciquifa.v47n3.77372.

An interesting case of the use of trivalent vanadium oxyhydroxide (VO(OH)) as an electrode modifier for nandrolone electrochemical determination has been described for the first time. It was shown that vanadium (III) oxyhydroxide may be an efficient electrode modifier for nandrolone determination, but, contrarily to the majority of the cases of the use of cobalt (III) oxyhydroxide, which is a relative compound, the process is cathodic and it is realized in moderately acid solutions, tending to neutral. The oscillatory behavior in the system is possible, due to the influence of the electrochemical reduction of tetravalent vanadium to trivalent in double electric layer.

Palavras-chave : Chemically modified electrodes; nandrolone; vanadium (III) oxyhydro-xide; cathodic electrochemical reduction; stable steady-state.

        · resumo em Português     · texto em Português     · Português ( pdf )