Synchronous-scan fluorescence and the complexation of copper (II) ions by humic substances
Two fluorescence bands were detected using synchronous-scan fluorescence on samples of terrestrially derived humic substances (lex/lem 380/398, 440/458 nm) without the addition of copper. A third band (lex/lem 502/520 nm) was detected after severe quenching of the second band (lex/lem 440/458 nm) ca...
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| Formato: | article |
| Idioma: | eng |
| Publicado em: |
1997
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| Texto completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531997000400004 |
| País: | Brasil |
| Oai: | oai:scielo:S0103-50531997000400004 |