Sensor arrays to detect humic substances and Cu (II) in waters
FL Leite, A Firmino, CE Borato, LHC Mattoso… - Synthetic metals, 2009 - Elsevier
The interaction between poly (o-ethoxyaniline)(POEA) adsorbed onto solid substrates and
humic substances (HS) and Cu2+ ions has been investigated using UV–vis spectroscopy
and atomic force microscopy (AFM). Both HS and Cu2+ are able to dope POEA and change
film morphology. This interaction was exploited in a sensor array made with nanostructured
films of POEA, sulfonated lignin and HS, which could detect small concentrations of HS and
Cu2+ in water.
humic substances (HS) and Cu2+ ions has been investigated using UV–vis spectroscopy
and atomic force microscopy (AFM). Both HS and Cu2+ are able to dope POEA and change
film morphology. This interaction was exploited in a sensor array made with nanostructured
films of POEA, sulfonated lignin and HS, which could detect small concentrations of HS and
Cu2+ in water.