| Autor: |
Santos Ademir dos, Bellin Iramaia C., Corbi Pedro Paulo, Cuin Alexandre, Rosa André Henrique, Rezende Maria Olimpia de O., Rocha Julio Cesar, Melnikov Petr |
| Jazyk: |
angličtina |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
Journal of the Brazilian Chemical Society, Vol 15, Iss 3, Pp 437-440 (2004) |
| Druh dokumentu: |
article |
| ISSN: |
0103-5053 |
| Popis: |
The aim of the present work was to carry out experimental comparison between humic substances (HS) and representative alpha-amino acids (methionine, methionine sulfoxide and cysteine hydrochloride) in relation to the complexation of biologically active trace elements (Al, Cu, Pb, Mn, Zn, Cd and Ni). A mobile time-controlled tangential-flow UF technique was applied to differentiate between HS-metal and alpha-aminoacids-metal complexes. Metal determinations were conventionally carried out using a ICP-OES. The results showed that HS may be considered as a selective complexing agents with higher metal bonding capability in relation to Al, Cu and Pb, the fact that may be clinically important. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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