Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Alizarin Red S modified electrochemical sensors for the detection of aluminum ion

  • Chang, Seung-Cheol (Institute for Bio Physio Sensor Technology(IBST), Pusan National University)
  • Received : 2010.10.20
  • Accepted : 2010.11.10
  • Published : 2010.11.30
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Abstract

Alizarin Red S modified screen printed carbon electrodes were developed for the electrochemical detection of aluminum ion. The electrodes developed use screen-printed carbon electrodes(SPCEs) coupled with chemical modification with an organic chelator, Alizarin Red S(ARS), for aluminum ion detection in aqueous solution. For sensor fabrication ARS was directly immobilized on the surface of SPCEs using PVA-SbQ(The poly(vinyl alcohol) bearing stryrylpyridinium groups). Aluminum concentrations were indirectly estimated by amperometric determination of the non-complexed ARS immobilized on the electrodes, after its complexation with aluminum. The sensitivity of the sensor developed was $3.8\;nA{\mu}M^{-1}cm^{-2}$ and the detection limit for aluminum was $25\;{\mu}M$.

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References

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