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Journal of Applied Electrochemistry

, Volume 42, Issue 8, pp 585–593 | Cite as

Flow injection analysis with amperometric detection for iodide determination as a tracer in seawater reservoirs

  • Flávia C. de Souza
  • Davi Augusto Izidro da Silva
  • Márcia Simões
  • Roberto Barros Faria
  • Maria Aparecida de Melo
  • Roberta Maciel Toledo
  • Eliane D’Elia
Original Paper

Abstract

In this study, an electrochemical method was developed using flow injection analysis and amperometric detection with screen-printed electrodes for iodide determination as a tracer in seawater reservoirs. The amperometric method resulted in a good linear correlation coefficient (r = 0.9966) with a linear response over a concentration range of 1–10 mg L−1, a limit of detection of 0.2 mg L−1 and a quantification of 0.6 mg L−1. In addition, the method has been shown to be precise, linear and homoscedastic. The recovery for the amperometric method was 100 ± 3 %, and the recovery for the produced water samples fortified with iodide was 102 ± 2 %. The amperometric method did not show interference from other anions. Thus, the proposed method is promising for analysing the iodide content of seawater reservoir samples with simple and inexpensive methodologies compared with ion chromatography techniques.

Keywords

Iodide Reservoir tracers Amperometry Screen-printed electrodes Flow injection analysis 

Notes

Acknowledgments

F. C. de Souza would like to thank the Brazilian National Petroleum Agency (ANP) for a doctoral fellowship. The authors are grateful to the Brazilian National Counsel for Technological and Scientific Development (CNPq) and Petrobras for their financial support.

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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Flávia C. de Souza
    • 1
  • Davi Augusto Izidro da Silva
    • 1
  • Márcia Simões
    • 1
  • Roberto Barros Faria
    • 1
  • Maria Aparecida de Melo
    • 2
  • Roberta Maciel Toledo
    • 2
  • Eliane D’Elia
    • 1
  1. 1.Instituto de Química, Centro de TecnologiaUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
  2. 2.CENPES/PetrobrasRio de JaneiroBrazil

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