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Construction and evaluation of a carbon paste electrode modified with polyaniline-co-poly(dithiodianiline) for enhanced stripping voltammetric determination of metal ions

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dc.contributor.author Somerset, V
dc.contributor.author Silwana, B
dc.contributor.author Van der Horst, C
dc.contributor.author Iwuoha, E
dc.date.accessioned 2015-03-12T10:02:34Z
dc.date.available 2015-03-12T10:02:34Z
dc.date.issued 2014-05
dc.identifier.citation Somerset, V, Silwana, B, Van der Horst, C and Iwuoha, E. 2014. Construction and evaluation of a carbon paste electrode modified with polyaniline-co-poly(dithiodianiline) for enhanced stripping voltammetric determination of metal ions. In: Sensing in Electroanalysis, University Press Centre, Pardubice, Czech Republic, vol. 8, pp 143-154 en_US
dc.identifier.isbn 978-80-7395-782-7
dc.identifier.uri http://dspace.upce.cz/bitstream/10195/58394/1/SomersetV_ConstructionAndEvaluation_2014.pdf
dc.identifier.uri http://hdl.handle.net/10204/7930
dc.description Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website. en_US
dc.description.abstract A modified carbon paste electrodes (MCPE) have been prepared in this study as an alternative “mercury-free” electrochemical sensor for the determination of Pb(sup2+) and Cd(sup2+) metal ions in aqueous solutions. CPE containing a conducting copolymer of polyaniline-co-poly(2,2'- dithiodianiline) (PANI-co-PDTDA) was used as a modified substrate transducer to achieve enhanced selectivity in stripping voltammetric analysis. The experimental conditions optimised included the supporting electrolyte pH, deposition potential (E(subd)) and time (t(subd)), set at -0.6 V vs. ref. for Pb(sup2+) and -0.8 V for Cd(sup2+); both kept for td = 120 s. The results with the CPE/PANI-co-PDTDA sensor have revealed the linear range within the range of 0.15 – 0.5 µg/L for Pb(sup2+) and the same interval for Cd(sup2+). Finally, the electrode of interest, CPE/PANI-co-PDTDA, can be characterised by the LODs of 0.03 and 0.09 µg/L for Pb(sup2+) and Cd(sup2+) respectively. en_US
dc.language.iso en en_US
dc.publisher University Press Centre en_US
dc.relation.ispartofseries Workflow;14108
dc.subject Carbon paste electrode en_US
dc.subject PANI-co-PDTDA en_US
dc.subject Differential pulse anodic stripping voltammetry en_US
dc.subject Lead and cadmium en_US
dc.subject Anthropogenic pollution sources en_US
dc.title Construction and evaluation of a carbon paste electrode modified with polyaniline-co-poly(dithiodianiline) for enhanced stripping voltammetric determination of metal ions en_US
dc.type Book Chapter en_US
dc.identifier.apacitation Somerset, V., Silwana, B., Van der Horst, C., & Iwuoha, E. (2014). Construction and evaluation of a carbon paste electrode modified with polyaniline-Co-Poly(dithiodianiline) for enhanced stripping voltammetric determination of metal ions., <i>Workflow;14108</i> University Press Centre. http://hdl.handle.net/10204/7930 en_ZA
dc.identifier.chicagocitation Somerset, V, B Silwana, C Van der Horst, and E Iwuoha. "Construction and evaluation of a carbon paste electrode modified with polyaniline-co-poly(dithiodianiline) for enhanced stripping voltammetric determination of metal ions" In <i>WORKFLOW;14108</i>, n.p.: University Press Centre. 2014. http://hdl.handle.net/10204/7930. en_ZA
dc.identifier.vancouvercitation Somerset V, Silwana B, Van der Horst C, Iwuoha E. Construction and evaluation of a carbon paste electrode modified with polyaniline-co-poly(dithiodianiline) for enhanced stripping voltammetric determination of metal ions.. Workflow;14108. [place unknown]: University Press Centre; 2014. [cited yyyy month dd]. http://hdl.handle.net/10204/7930. en_ZA
dc.identifier.ris TY - Book Chapter AU - Somerset, V AU - Silwana, B AU - Van der Horst, C AU - Iwuoha, E AB - A modified carbon paste electrodes (MCPE) have been prepared in this study as an alternative “mercury-free” electrochemical sensor for the determination of Pb(sup2+) and Cd(sup2+) metal ions in aqueous solutions. CPE containing a conducting copolymer of polyaniline-co-poly(2,2'- dithiodianiline) (PANI-co-PDTDA) was used as a modified substrate transducer to achieve enhanced selectivity in stripping voltammetric analysis. The experimental conditions optimised included the supporting electrolyte pH, deposition potential (E(subd)) and time (t(subd)), set at -0.6 V vs. ref. for Pb(sup2+) and -0.8 V for Cd(sup2+); both kept for td = 120 s. The results with the CPE/PANI-co-PDTDA sensor have revealed the linear range within the range of 0.15 – 0.5 µg/L for Pb(sup2+) and the same interval for Cd(sup2+). Finally, the electrode of interest, CPE/PANI-co-PDTDA, can be characterised by the LODs of 0.03 and 0.09 µg/L for Pb(sup2+) and Cd(sup2+) respectively. DA - 2014-05 DB - ResearchSpace DP - CSIR KW - Carbon paste electrode KW - PANI-co-PDTDA KW - Differential pulse anodic stripping voltammetry KW - Lead and cadmium KW - Anthropogenic pollution sources LK - https://researchspace.csir.co.za PY - 2014 SM - 978-80-7395-782-7 T1 - Construction and evaluation of a carbon paste electrode modified with polyaniline-co-poly(dithiodianiline) for enhanced stripping voltammetric determination of metal ions TI - Construction and evaluation of a carbon paste electrode modified with polyaniline-co-poly(dithiodianiline) for enhanced stripping voltammetric determination of metal ions UR - http://hdl.handle.net/10204/7930 ER - en_ZA


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