The pH effect in the diffusion coefficient of humic matter: Influence in speciation studies using voltammetric techniques

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Volumn 137, Issue 1-3, 1998, Pages 165-170

  Pinheiro, J P ^a   Mota, A M ^b   Simoes Goncalves M L S ^b   Van Leeuwen, H P ^c  

^a UNIVERSITY OF ALGARVE   (Portugal)

^b INSTITUTO SUPERIOR TÉCNICO   (Portugal)

^c WAGENINGEN UNIVERSITY   (Netherlands)

Author keywords

Diffusion coefficient; Humic matter; Speciation; Trace metals; Voltammetry

Indexed keywords

ADSORPTION; AGGLOMERATION; COMPOSITION EFFECTS; DIFFUSION IN SOLIDS; ELECTROCHEMICAL ELECTRODES; ELECTROSTATICS; PH EFFECTS; TRACE ELEMENTS;

HUMIC MATTER;

ORGANIC ACIDS;

HUMIC ACID; TRACE METAL;

ADSORPTION; ARTICLE; COMPLEX FORMATION; DIFFUSION; HUMIC SUBSTANCE; MOLECULAR INTERACTION; PH; POTENTIOMETRY; PRIORITY JOURNAL;

EID: 0032525794     PISSN: 09277757     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0927-7757(97)00306-3     Document Type: Article

References (19)

1. [1] J.P. Pinheiro, A.M. Mota, J.M.R. d'Oliveira, J.M.G. Martinho, Anal. Chim. Acta 329 (1996) 15.
2. [2] P.M. Reid, A. Wilkinson, E. Tipping, M.N. Jones, J. Soil Sci. 42 (1991) 259.
3. [3] M.S. Caceci, A. Billon, Org. Geochem. 15 (3) (1990) 335.
4. [4] R. Osterberg, I. Lindqvist, K. Mortensen, Soil Sci. Soc. Am. J. 57 (1993) 283.
5. [5] R.R. Engebretson, R. von Wandruszka, Environ. Sci. Technol. 28 (1994) 1934.
6. [6] H.K. Powell, R.M. Town, Anal Chim. Acta 267 (1992) 47.
7. [7] J. Buffle, Complexation Reactions in Aquatic Chemistry, Ellis Horwood, Chichester, 1988.
8. [8] R.F.M.J. Cleven, H.P. van Leeuwen, Int. J. Environ. Anal. Chem. 27 (1986) 11.
9. [9] A.J. Bard, L.R. Faulkner, Electrochemical methods: fundamentals and applications, chap. 4, Wiley, New York, 1980.
10. [10] H.P. Van Leeuwen, R.F.M.J. Cleven, J. Buffle, Pure Appl. Chem. 61 (2) (1989) 255.
11. [11] M.V. Stackelberg, M. Pilgram, V. Toome, Z. Elektrochem. 57 (1953) 342.
12. [12] L.K. Koopal, W.H. van Riemsdijk, J.C.M. de Wit, M.F. Benedetti, J. Colloid Interface Sci. 166 (1994) 51.
13. [13] M.F. Benedetti, C.J. Milne, D.G. Kinniburgh, W.H. van Riemsdijk, L.K. Koopal, Environ. Sci. Technol. 30 (1995) 1805.
14. [14] C.J. Milne, D.G. Kinniburgh, J.C.M. de Wit, W.H. van Riemsdijk, L.K. Koopal, Geochim. Cosmochim. Acta 59 (1995) 1101.
15. [15] Characterization of Laurentian Fulvic Acid, Ecolink customer information, Ecolink, Canada, 1994.
16. [16] J.P. Pinheiro, PhD Thesis, Institute Superior Técnico, Lisbon, 1996.
17. [17] J.P. Pinheiro, A.M. Mota, M.L.S. Gonçalves, M. van der Weijde, H.P. van Leeuwen, J. Electroanal. Chem. 410 (1996) 61.
18. [18] J. Galceran, D. Rene, J. Salvador, J. Puy, M. Esteban, F. Mas, J. Electoanal. Chem. 375 (1994) 307.
19. [19] G.R. Aiken, D.M. McKnight, R.L. Wershaw, P. McCarthy (Eds.), Humic Substances in Soil, Sediment and Water, Wiley Interscience, NY, 1985.