Screen-printed electrochemical chromium (VI) sensing electrodes for effluent bioremediation monitoring

In this work, we introduce a simple, low-cost and acid-resistant materials system for carbon-based screen-printed electrodes (SPEs), and apply it to chemical sensing of hexavalent chromium, i.e. Cr(VI), in acid environments, as encountered in bioremediation of industrial effluents. The developed composite materials comprised of 1) dense organic-carbon conductor, 2) porous polymer-carbon-ligand active sensing material, and 3) insulating and protective dielectric. All materials were formulated with two different organic matrices, polyvinylbutyral (PVB) or epoxy resin (EP). The selected ionophore for chromium detection was diethylenetriamine-pentaacetic acid (DTPA). Both variants allowed Cr(VI) sensing over a wide concentration range in acid media.


Published in:
Procedia Engineering, 47, 1303-1306
Year:
2012
Publisher:
Amsterdam, Elsevier Science Bv
Keywords:
Note:
Capteur - électrode sérigraphiée (SPE) - électrode carbone-résine, pour détection Cr(VI). Collaboration avec UBA, Argentine.
Laboratories:




 Record created 2012-09-14, last modified 2018-01-28

External links:
Download fulltextPreprint
Download fulltextPrésentation
Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)