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A study of electrochemical behavior for redox peaks of Pb(II) ions in human blood samples using Nanosensor | ||
| Albahir journal | ||
| Article 1, Volume 5, Issue 9, 2017, Pages 63-73 | ||
| Author | ||
| Muhammed Mizher Radhi | ||
| Abstract | ||
| The electrochemical method using cyclic voltammetrictechniquewas determined the effect of high temperature on the redox current peaks of one of pollutant in an environment are lead ions in vitro for humanblood medium. The present study showed the effect of different temperatures on the lead ions in blood medium by analysis cyclic voltammetric analysis and determination the chemical thermodynamic factors. It was usedmultiwall carbon nanotube (MWCNT) / glassy carbon electrode (GCE),modified working electrode (MWCNT/GCE) as a good sensor to detection the effect of different temperatures on the blood medium in presence of Pb(II) ions. The results was confirmed that oxidation and reduction current peak of Pb(II) ions at -(0.5) V and (0.11)V,respectively at low temperature (20)oCand monitoring the redox current peaks against increasing the temperature until (60)oC. It was found that the anodic current peak of lead ions in blood medium was decreased with increasing temperature, but cathodic current peak was enhanced about three times at high temperature (60) oC. Thus, the activation energy (E*) values were determined from Arrhenius equation for oxidative peak is (-15.541) kJ.mol-1.K-1and for anti-oxidative peak is (35.271) kJ.mol-1.K-1Other thermodynamic functions such as change in Enthalpy of activation (ΔH*), change in Gibbs of activation (ΔG*) and change in Entropy of activation (ΔS*) were determined byEyring equation. The results enhanced the blood of people pollutant with lead ions was significant affectedby environment or exposure with different source of high temperature such as workers in factories by complexation with the blood componentand causes to precipitation of heavy metal (Pb) on the brain by the reduction process of Pb(II)/Pb(0) which may be causes different disease such asAlzheimer in adults or Autism in infants. | ||
| Keywords | ||
| Lead ions; Cyclic voltammetry technique; blood medium; Nanosensor | ||
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