@article{fdi:010070665,
  title = {{E}lectroanalytical detection of {C}r{VI} and {C}r{III} ions using a novel microbial sensor},
  author = {{P}rabhakaran, {D}.{C}. and {R}iotte, {J}ean and {S}ivry, {Y}. and {S}ubramanian, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} microbial sensor, namely carbon paste electrode ({CPE}) modified with {C}itrobacter freundii ({C}f-{CPE}) has been developed for the detection of hexavalent ({C}r({VI})) and trivalent ({C}r({III})) chromium present in aqueous samples using voltammetry, an electroanalytical technique. {T}he biosensor developed, demonstrated about a twofold higher performance as compared to the bare {CPE} for the chosen ions. {U}sing cyclic voltammetry and by employing the fabricated {C}f-{CPE}, the lowest limit of detection ({LLOD}) of 1x10(-4) {M} and 5x10(-4) {M} for {C}r({VI}) and {C}r({III}) ions respectively could be achieved. {B}y adopting the {D}ifferential {P}ulse {C}athodic {S}tripping {V}oltammetric technique, the {LLOD} could be further improved to 1x10(-9) {M} and 1x10(-7) {M} for {C}r({VI}) and {C}r({III}) ions respectively using the biomodified electrodes. {T}he reactions occurring at the electrode surface-chromium solution interface and the mechanisms of biosorption of chromium species onto the biosensor are discussed. {T}he stability and utility of the developed biosensor for the analysis of {C}r({VI}) and {C}r({III}) ions in chromite mine water samples has been evaluated.},
  keywords = {},
  booktitle = {},
  journal = {{E}lectroanalysis},
  volume = {29},
  numero = {5},
  pages = {1222--1231},
  ISSN = {1040-0397},
  year = {2017},
  DOI = {10.1002/elan.201600458},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070665},
}