SciELO - Scientific Electronic Library Online

 
vol.71Effects of zinc precursor, basicity and temperature on the aqueous synthesis of ZnO nanocrystalsDevelopment and validation of an ecofriendly chemiluminescence method for the determination of citalopram in pharmaceutical preparations using Cu²+-grafted Oxidized multiwall carbon nanotubes índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Em processo de indexaçãoSimilares em Google

Compartilhar


South African Journal of Chemistry

versão On-line ISSN 1996-840X
versão impressa ISSN 0379-4350

Resumo

BROMLEY, Candice L. et al. Hyphenated LC-ICP-MS/ESI-MS identification of halogenated metabolites in South African marine ascidian extracts. S.Afr.j.chem. (Online) [online]. 2018, vol.71, pp.111-117. ISSN 1996-840X.  http://dx.doi.org/10.17159/0379-4350/2018/v71a14.

Extracts of 13 species of marine ascidian collected in Algoa Bay were analyzed by LC-ICP-MS/ESI-MS. This technique allows parallel analysis of the molecular species and the presence of certain elements. The LC-ICP-MS/ESI-MS technique was used to target iodinated metabolites in this study. Three ascidian species afforded the known 3,5-diiodo-4-methoxyphenethylamine (12), which was confirmedby the isolation of this metabolite from Aplidium monile. MS also suggested the presence of the known 3,5-dibromo-4-methoxyphenethylamine (10) and the new 3-bromo-5-iodo-4-methoxyphenethylamine (11)inthe A. monile extract. The presence of the known 3,5-dibromotetramethyltyrosine (21) and the new 3-iodotetramethyltyrosine (23) in extracts of an unidentified Didemnum species was similarly proposed from MS evidence. This is the first report of the occurrence of iodinated metabolites in South African marine invertebrates.

Palavras-chave : Marine; ascidian; iodinated tyramine; iodinated tyrosine; LC-ICP-MS/ESI-MS.

        · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons