Tangential-flow ultrafiltration: a versatile methodology for determination of complexation parameters in refractory organic matter from Brazilian water and soil samples
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/04/2003
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Resumo |
In this work the copper(II) complexation parameters of aquatic organic matter, aquatic and soil humic substances from Brazilian were determined using a new versatile approach based on a single-stage tangential-flow ultrafiltration (TF-UF) technique (cut-off 1 kDa) and sensitive atomic spectrometry methods. The results regarding the copper(II) complexation capacity and conditional stability constants obtained for humic materials were compared with those obtained using direct potentiometry with a copper-ion-selective electrode. The analytical procedure based on ultrafiltration is a good alternative to determine the complexation parameters in natural organic material from aquatic and soil systems. This approach presents additional advantages such as better sensibility, applicability for multi-element capability, and its possible to be used under natural conditions when compared with the traditional ion-selective electrode. |
Formato |
1097-1100 |
Identificador |
http://dx.doi.org/10.1007/s00216-002-1728-6 Analytical and Bioanalytical Chemistry. Berlin: Springer-verlag Berlin, v. 375, n. 8, p. 1097-1100, 2003. 1618-2642 http://hdl.handle.net/11449/37012 10.1007/s00216-002-1728-6 WOS:000183199000020 |
Idioma(s) |
eng |
Publicador |
Springer |
Relação |
Analytical and Bioanalytical Chemistry |
Direitos |
closedAccess |
Palavras-Chave | #complexation parameters #copper #organic matter #humic substances #ultrafiltration #ion-selective electrode |
Tipo |
info:eu-repo/semantics/article |