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Adsorption of gluconic and citric acids on maghemite particles in aqueous medium

  • Mixed Colloidal Systems
  • Chapter
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Trends in Colloid and Interface Science X

Part of the book series: Progress in Colloid & Polymer Science ((PROGCOLLOID,volume 100))

Abstract

Adsorption of gluconic and citric acids, separately or simultaneously, on maghemite (γ-Fe2O3) nanoparticles in aqueous medium is studied at 25°C. The concentrations of adsorbed acids are determined by HPLC. The stability range is determined by spectrophotometry. It is strongly dependent on pH and on concentration of adsorbed acids. The concentration of adsorbed ligands can be monitored to obtain stable colloidal solutions in the range of pH 6–8, with particles coated simultaneously by the two ligands. In particular, these magnetic liquids are interesting in view of medical applications.

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Authors and Affiliations

  1. Laboratoire de Physicochimie Inorganique, Université Pierre et Marie Curie, 4, place Jussieu, 75252, Paris Cedex 05, France

    N. Fauconnier, A. Bee, J. Roger & J. N. Pons

Authors
  1. N. Fauconnier
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  2. A. Bee
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  3. J. Roger
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  4. J. N. Pons
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Editor information

C. Solans M. R. Infante M. J. García-Celma

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© 1996 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Fauconnier, N., Bee, A., Roger, J., Pons, J.N. (1996). Adsorption of gluconic and citric acids on maghemite particles in aqueous medium. In: Solans, C., Infante, M.R., García-Celma, M.J. (eds) Trends in Colloid and Interface Science X. Progress in Colloid & Polymer Science, vol 100. Steinkopff. https://doi.org/10.1007/BFb0115782

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  • DOI: https://doi.org/10.1007/BFb0115782

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  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-1056-2

  • Online ISBN: 978-3-7985-1665-6

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