• DocumentCode
    3488477
  • Title

    Sensors for detecting humic substances and heavy metal complexes in waters

  • Author

    Firmino, Alessandra ; Borato, C.E. ; Leite, Fabio L. ; Oliveira, Osvaldo N., Jr. ; Silva, Wilson T L ; Mattoso, Luiz H C

  • Author_Institution
    Pos-Graduacao em Ciencia e Engenharia de Materials, USP, Sao Carlos, Brazil
  • fYear
    2005
  • fDate
    11-14 Sept. 2005
  • Firstpage
    420
  • Lastpage
    423
  • Abstract
    The interaction between poly(o-ethoxyaniline) (POEA) adsorbed onto solid substrates and humic substances (HS) and Cu2+ ions has been investigated with UV-VIS spectroscopy and atomic force microscopy. Both HS and Cu2+ cause the POEA film to be further doped, and alter the film morphology. This interaction was exploited in a sensor array made of nanostructured films of POEA, sulfonated lignin and HS, which could detect small concentrations of HS and Cu2+ in water.
  • Keywords
    adsorbed layers; atomic force microscopy; nanostructured materials; polymer films; ultraviolet spectra; visible spectra; Cu2+ ions; UV spectra; adsorbed poly(o-ethoxyaniline) film; atomic force microscopy; heavy metal complexes; humic substances; nanostructured films; sensor array; visible spectra; Atomic force microscopy; Atomic measurements; Chemicals; Electrodes; Force measurement; Force sensors; Optical films; Sensor arrays; Solids; Spectroscopy;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Electrets, 2005. ISE-12. 2005 12th International Symposium on
  • Print_ISBN
    0-7803-9116-0
  • Type

    conf

  • DOI
    10.1109/ISE.2005.1612413
  • Filename
    1612413
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3488477