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DC Field | Value | Language |
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dc.contributor.author | Rocha, J. C. | - |
dc.contributor.author | Toscano, IAS | - |
dc.contributor.author | Burba, P. | - |
dc.date.accessioned | 2014-05-20T15:27:02Z | - |
dc.date.accessioned | 2016-10-25T18:01:45Z | - |
dc.date.available | 2014-05-20T15:27:02Z | - |
dc.date.available | 2016-10-25T18:01:45Z | - |
dc.date.issued | 1997-01-01 | - |
dc.identifier | http://dx.doi.org/10.1016/S0039-9140(96)02017-6 | - |
dc.identifier.citation | Talanta. Amsterdam: Elsevier B.V., v. 44, n. 1, p. 69-74, 1997. | - |
dc.identifier.issn | 0039-9140 | - |
dc.identifier.uri | http://hdl.handle.net/11449/37088 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/37088 | - |
dc.description.abstract | Labile metal species in aquatic humic substances (HSs) were characterized by ion exchange on cellulose phosphate (CellPhos) by applying an optimized batch procedure. The HSs investigated were pre-extracted from humic-rich waters by ultrafiltration and a resin XAD 8 procedure. The HS-metal species studied were formed by complexation with Cd(II), Ni(II), Cu(II), Mn(II) and Pb(II) as a function of time and the ratio ions to HSs. The kinetics and reaction order of this exchange process were studied. At the beginning (<3 min), the labile metal fractions are separated relatively quickly. After 3 min, the separation of the metal ions proceeds with uniform half-lives of about 12-14 min, revealing rather slow first-order kinetics. The metal exchange between HSs and CellPhos exhibited the following order of metal lability with the studied HSs: Cu > Pb > Mn > Ni > Cd. The required metal determinations were carried out by atomic absorption spectrometry. | en |
dc.format.extent | 69-74 | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier B.V. | - |
dc.source | Web of Science | - |
dc.subject | aquatic humic substances | pt |
dc.subject | cellulose phosphate | pt |
dc.subject | heavy metal species | pt |
dc.subject | ion exchange | pt |
dc.subject | lability | pt |
dc.title | Lability of heavy metal species in aquatic humic substances characterized by ion exchange with cellulose phosphate | en |
dc.type | outro | - |
dc.contributor.institution | INST SPECTROCHEM & APPL SPECT | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.description.affiliation | INST SPECTROCHEM & APPL SPECT,D-44139 DORTMUND,GERMANY | - |
dc.identifier.doi | 10.1016/S0039-9140(96)02017-6 | - |
dc.identifier.wos | WOS:A1997VW14200009 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Talanta | - |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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