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Type: Artigo de periódico
Title: Study Of Complexation Capacity And Its Relationship With Some Environmental Variables In Five Reservoirs Of The Tietê River System [estudo Da Capacidade De Complexação E Sua Relação Com Algumas Variáveis Ambientais Em Cinco Represas Do Rio Tietê/brasil]
Author: Borges E.C.L.
Mozeto A.A.
Almeida Neves E.F.
Neto W.B.
Bezerra J.M.
Abstract: The copper and cadmium complexation properties in natural sediment suspensions of reservoirs of the Tietê River were studied using the solid membrane copper and cadmium ion-selective electrodes. The complexation and the average conditional stability constants were determined under equilibrium conditions at pH=6.00 ± 0.05 in a medium of 1.0 mol L-1 sodium nitrate, using the Scatchard method. The copper and cadmium electrodes presented Nernstian behavior from 1×10-6 to 1×10 -3 mol L-1 of total metal concentration. Scatchard graphs suggest two classes of binding sites for both metals. A multivariate study was done to correlate the reservoirs and the variables: complexation properties, size, total organic carbon, volatile acid sulfide, EH and pH.
Rights: aberto
Identifier DOI: 
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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