Competition between humic substances and a-amino acids by metal species
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)....
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2004-01-01
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| Series: | Journal of the Brazilian Chemical Society |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000300016 |
| _version_ | 1811220179666862080 |
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| author | Santos Ademir dos Bellin Iramaia C. Corbi Pedro Paulo Cuin Alexandre Rosa André Henrique Rezende Maria Olimpia de O. Rocha Julio Cesar Melnikov Petr |
| author_facet | Santos Ademir dos Bellin Iramaia C. Corbi Pedro Paulo Cuin Alexandre Rosa André Henrique Rezende Maria Olimpia de O. Rocha Julio Cesar Melnikov Petr |
| author_sort | Santos Ademir dos |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-12T07:37:08Z |
| format | Article |
| id | doaj.art-c684ea4e06594444ba9ae34530388998 |
| institution | Directory Open Access Journal |
| issn | 0103-5053 |
| language | English |
| last_indexed | 2024-04-12T07:37:08Z |
| publishDate | 2004-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Journal of the Brazilian Chemical Society |
| spelling | doaj.art-c684ea4e06594444ba9ae345303889982022-12-22T03:41:55ZengSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society0103-50532004-01-01153437440Competition between humic substances and a-amino acids by metal speciesSantos Ademir dosBellin Iramaia C.Corbi Pedro PauloCuin AlexandreRosa André HenriqueRezende Maria Olimpia de O.Rocha Julio CesarMelnikov PetrThe 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000300016humic substancessoilsmetalsalpha-amino acids |
| spellingShingle | Santos Ademir dos Bellin Iramaia C. Corbi Pedro Paulo Cuin Alexandre Rosa André Henrique Rezende Maria Olimpia de O. Rocha Julio Cesar Melnikov Petr Competition between humic substances and a-amino acids by metal species Journal of the Brazilian Chemical Society humic substances soils metals alpha-amino acids |
| title | Competition between humic substances and a-amino acids by metal species |
| title_full | Competition between humic substances and a-amino acids by metal species |
| title_fullStr | Competition between humic substances and a-amino acids by metal species |
| title_full_unstemmed | Competition between humic substances and a-amino acids by metal species |
| title_short | Competition between humic substances and a-amino acids by metal species |
| title_sort | competition between humic substances and a amino acids by metal species |
| topic | humic substances soils metals alpha-amino acids |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000300016 |
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